21008052800

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{81553}}^1$

素因数の和:81605

約数の個数: 168

約数和(自身を含む): 61646994816

約数和(自身を除く): 40638942016

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 32, 35, 40, 46, 50, 56, 64, 70, 80, 92, 100, 112, 115, 140, 160, 161, 175, 184, 200, 224, 230, 280, 320, 322, 350, 368, 400, 448, 460, 560, 575, 644, 700, 736, 800, 805, 920, 1120, 1150, 1288, 1400, 1472, 1600, 1610, 1840, 2240, 2300, 2576, 2800, 3220, 3680, 4025, 4600, 5152, 5600, 6440, 7360, 8050, 9200, 10304, 11200, 12880, 16100, 18400, 25760, 32200, 36800, 51520, 64400, 81553, 128800, 163106, 257600, 326212, 407765, 570871, 652424, 815530, 1141742, 1304848, 1631060, 1875719, 2038825, 2283484, 2609696, 2854355, 3262120, 3751438, 4077650, 4566968, 5219392, 5708710, 6524240, 7502876, 8155300, 9133936, 9378595, 11417420, 13048480, 13130033, 14271775, 15005752, 16310600, 18267872, 18757190, 22834840, 26096960, 26260066, 28543550, 30011504, 32621200, 36535744, 37514380, 45669680, 46892975, 52520132, 57087100, 60023008, 65242400, 65650165, 75028760, 91339360, 93785950, 105040264, 114174200, 120046016, 130484800, 131300330, 150057520, 182678720, 187571900, 210080528, 228348400, 262600660, 300115040, 328250825, 375143800, 420161056, 456696800, 525201320, 600230080, 656501650, 750287600, 840322112, 913393600, 1050402640, 1313003300, 1500575200, 2100805280, 2626006600, 3001150400, 4201610560, 5252013200, 10504026400, 21008052800]

約数ペア:

[(1, 21008052800), (2, 10504026400), (4, 5252013200), (5, 4201610560), (7, 3001150400), (8, 2626006600), (10, 2100805280), (14, 1500575200), (16, 1313003300), (20, 1050402640), (23, 913393600), (25, 840322112), (28, 750287600), (32, 656501650), (35, 600230080), (40, 525201320), (46, 456696800), (50, 420161056), (56, 375143800), (64, 328250825), (70, 300115040), (80, 262600660), (92, 228348400), (100, 210080528), (112, 187571900), (115, 182678720), (140, 150057520), (160, 131300330), (161, 130484800), (175, 120046016), (184, 114174200), (200, 105040264), (224, 93785950), (230, 91339360), (280, 75028760), (320, 65650165), (322, 65242400), (350, 60023008), (368, 57087100), (400, 52520132), (448, 46892975), (460, 45669680), (560, 37514380), (575, 36535744), (644, 32621200), (700, 30011504), (736, 28543550), (800, 26260066), (805, 26096960), (920, 22834840), (1120, 18757190), (1150, 18267872), (1288, 16310600), (1400, 15005752), (1472, 14271775), (1600, 13130033), (1610, 13048480), (1840, 11417420), (2240, 9378595), (2300, 9133936), (2576, 8155300), (2800, 7502876), (3220, 6524240), (3680, 5708710), (4025, 5219392), (4600, 4566968), (5152, 4077650), (5600, 3751438), (6440, 3262120), (7360, 2854355), (8050, 2609696), (9200, 2283484), (10304, 2038825), (11200, 1875719), (12880, 1631060), (16100, 1304848), (18400, 1141742), (25760, 815530), (32200, 652424), (36800, 570871), (51520, 407765), (64400, 326212), (81553, 257600), (128800, 163106)]