20639216000

素因数分解:

$2^7\times 5^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1481}}^1$

素因数の和:1590

約数の個数: 256

約数和(自身を含む): 56124169920

約数和(自身を除く): 35484953920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 67, 80, 100, 104, 125, 128, 130, 134, 160, 200, 208, 250, 260, 268, 320, 325, 335, 400, 416, 500, 520, 536, 640, 650, 670, 800, 832, 871, 1000, 1040, 1072, 1300, 1340, 1481, 1600, 1625, 1664, 1675, 1742, 2000, 2080, 2144, 2600, 2680, 2962, 3200, 3250, 3350, 3484, 4000, 4160, 4288, 4355, 5200, 5360, 5924, 6500, 6700, 6968, 7405, 8000, 8320, 8375, 8576, 8710, 10400, 10720, 11848, 13000, 13400, 13936, 14810, 16000, 16750, 17420, 19253, 20800, 21440, 21775, 23696, 26000, 26800, 27872, 29620, 33500, 34840, 37025, 38506, 41600, 42880, 43550, 47392, 52000, 53600, 55744, 59240, 67000, 69680, 74050, 77012, 87100, 94784, 96265, 99227, 104000, 107200, 108875, 111488, 118480, 134000, 139360, 148100, 154024, 174200, 185125, 189568, 192530, 198454, 208000, 214400, 217750, 236960, 268000, 278720, 296200, 308048, 348400, 370250, 385060, 396908, 435500, 473920, 481325, 496135, 536000, 557440, 592400, 616096, 696800, 740500, 770120, 793816, 871000, 947840, 962650, 992270, 1072000, 1184800, 1232192, 1289951, 1393600, 1481000, 1540240, 1587632, 1742000, 1925300, 1984540, 2369600, 2406625, 2464384, 2480675, 2579902, 2787200, 2962000, 3080480, 3175264, 3484000, 3850600, 3969080, 4739200, 4813250, 4961350, 5159804, 5924000, 6160960, 6350528, 6449755, 6968000, 7701200, 7938160, 9626500, 9922700, 10319608, 11848000, 12321920, 12403375, 12701056, 12899510, 13936000, 15402400, 15876320, 19253000, 19845400, 20639216, 23696000, 24806750, 25799020, 30804800, 31752640, 32248775, 38506000, 39690800, 41278432, 49613500, 51598040, 61609600, 63505280, 64497550, 77012000, 79381600, 82556864, 99227000, 103196080, 128995100, 154024000, 158763200, 161243875, 165113728, 198454000, 206392160, 257990200, 308048000, 317526400, 322487750, 396908000, 412784320, 515980400, 644975500, 793816000, 825568640, 1031960800, 1289951000, 1587632000, 2063921600, 2579902000, 4127843200, 5159804000, 10319608000, 20639216000]

約数ペア:

[(1, 20639216000), (2, 10319608000), (4, 5159804000), (5, 4127843200), (8, 2579902000), (10, 2063921600), (13, 1587632000), (16, 1289951000), (20, 1031960800), (25, 825568640), (26, 793816000), (32, 644975500), (40, 515980400), (50, 412784320), (52, 396908000), (64, 322487750), (65, 317526400), (67, 308048000), (80, 257990200), (100, 206392160), (104, 198454000), (125, 165113728), (128, 161243875), (130, 158763200), (134, 154024000), (160, 128995100), (200, 103196080), (208, 99227000), (250, 82556864), (260, 79381600), (268, 77012000), (320, 64497550), (325, 63505280), (335, 61609600), (400, 51598040), (416, 49613500), (500, 41278432), (520, 39690800), (536, 38506000), (640, 32248775), (650, 31752640), (670, 30804800), (800, 25799020), (832, 24806750), (871, 23696000), (1000, 20639216), (1040, 19845400), (1072, 19253000), (1300, 15876320), (1340, 15402400), (1481, 13936000), (1600, 12899510), (1625, 12701056), (1664, 12403375), (1675, 12321920), (1742, 11848000), (2000, 10319608), (2080, 9922700), (2144, 9626500), (2600, 7938160), (2680, 7701200), (2962, 6968000), (3200, 6449755), (3250, 6350528), (3350, 6160960), (3484, 5924000), (4000, 5159804), (4160, 4961350), (4288, 4813250), (4355, 4739200), (5200, 3969080), (5360, 3850600), (5924, 3484000), (6500, 3175264), (6700, 3080480), (6968, 2962000), (7405, 2787200), (8000, 2579902), (8320, 2480675), (8375, 2464384), (8576, 2406625), (8710, 2369600), (10400, 1984540), (10720, 1925300), (11848, 1742000), (13000, 1587632), (13400, 1540240), (13936, 1481000), (14810, 1393600), (16000, 1289951), (16750, 1232192), (17420, 1184800), (19253, 1072000), (20800, 992270), (21440, 962650), (21775, 947840), (23696, 871000), (26000, 793816), (26800, 770120), (27872, 740500), (29620, 696800), (33500, 616096), (34840, 592400), (37025, 557440), (38506, 536000), (41600, 496135), (42880, 481325), (43550, 473920), (47392, 435500), (52000, 396908), (53600, 385060), (55744, 370250), (59240, 348400), (67000, 308048), (69680, 296200), (74050, 278720), (77012, 268000), (87100, 236960), (94784, 217750), (96265, 214400), (99227, 208000), (104000, 198454), (107200, 192530), (108875, 189568), (111488, 185125), (118480, 174200), (134000, 154024), (139360, 148100)]