19830720

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1$

素因数の和:267

約数の個数: 224

約数和(自身を含む): 77833728

約数和(自身を除く): 58003008

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 52, 56, 60, 64, 65, 70, 78, 80, 84, 91, 96, 104, 105, 112, 120, 130, 140, 156, 160, 168, 182, 192, 195, 208, 210, 224, 227, 240, 260, 273, 280, 312, 320, 336, 364, 390, 416, 420, 448, 454, 455, 480, 520, 546, 560, 624, 672, 681, 728, 780, 832, 840, 908, 910, 960, 1040, 1092, 1120, 1135, 1248, 1344, 1362, 1365, 1456, 1560, 1589, 1680, 1816, 1820, 2080, 2184, 2240, 2270, 2496, 2724, 2730, 2912, 2951, 3120, 3178, 3360, 3405, 3632, 3640, 4160, 4368, 4540, 4767, 5448, 5460, 5824, 5902, 6240, 6356, 6720, 6810, 7264, 7280, 7945, 8736, 8853, 9080, 9534, 10896, 10920, 11804, 12480, 12712, 13620, 14528, 14560, 14755, 15890, 17472, 17706, 18160, 19068, 20657, 21792, 21840, 23608, 23835, 25424, 27240, 29120, 29510, 31780, 35412, 36320, 38136, 41314, 43584, 43680, 44265, 47216, 47670, 50848, 54480, 59020, 61971, 63560, 70824, 72640, 76272, 82628, 87360, 88530, 94432, 95340, 101696, 103285, 108960, 118040, 123942, 127120, 141648, 152544, 165256, 177060, 188864, 190680, 206570, 217920, 236080, 247884, 254240, 283296, 305088, 309855, 330512, 354120, 381360, 413140, 472160, 495768, 508480, 566592, 619710, 661024, 708240, 762720, 826280, 944320, 991536, 1239420, 1322048, 1416480, 1525440, 1652560, 1983072, 2478840, 2832960, 3305120, 3966144, 4957680, 6610240, 9915360, 19830720]

約数ペア:

[(1, 19830720), (2, 9915360), (3, 6610240), (4, 4957680), (5, 3966144), (6, 3305120), (7, 2832960), (8, 2478840), (10, 1983072), (12, 1652560), (13, 1525440), (14, 1416480), (15, 1322048), (16, 1239420), (20, 991536), (21, 944320), (24, 826280), (26, 762720), (28, 708240), (30, 661024), (32, 619710), (35, 566592), (39, 508480), (40, 495768), (42, 472160), (48, 413140), (52, 381360), (56, 354120), (60, 330512), (64, 309855), (65, 305088), (70, 283296), (78, 254240), (80, 247884), (84, 236080), (91, 217920), (96, 206570), (104, 190680), (105, 188864), (112, 177060), (120, 165256), (130, 152544), (140, 141648), (156, 127120), (160, 123942), (168, 118040), (182, 108960), (192, 103285), (195, 101696), (208, 95340), (210, 94432), (224, 88530), (227, 87360), (240, 82628), (260, 76272), (273, 72640), (280, 70824), (312, 63560), (320, 61971), (336, 59020), (364, 54480), (390, 50848), (416, 47670), (420, 47216), (448, 44265), (454, 43680), (455, 43584), (480, 41314), (520, 38136), (546, 36320), (560, 35412), (624, 31780), (672, 29510), (681, 29120), (728, 27240), (780, 25424), (832, 23835), (840, 23608), (908, 21840), (910, 21792), (960, 20657), (1040, 19068), (1092, 18160), (1120, 17706), (1135, 17472), (1248, 15890), (1344, 14755), (1362, 14560), (1365, 14528), (1456, 13620), (1560, 12712), (1589, 12480), (1680, 11804), (1816, 10920), (1820, 10896), (2080, 9534), (2184, 9080), (2240, 8853), (2270, 8736), (2496, 7945), (2724, 7280), (2730, 7264), (2912, 6810), (2951, 6720), (3120, 6356), (3178, 6240), (3360, 5902), (3405, 5824), (3632, 5460), (3640, 5448), (4160, 4767), (4368, 4540)]