391738240

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:360

約数の個数: 128

約数和(自身を含む): 979542720

約数和(自身を除く): 587804480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 71, 74, 80, 128, 142, 148, 160, 185, 233, 284, 296, 320, 355, 370, 466, 568, 592, 640, 710, 740, 932, 1136, 1165, 1184, 1420, 1480, 1864, 2272, 2330, 2368, 2627, 2840, 2960, 3728, 4544, 4660, 4736, 5254, 5680, 5920, 7456, 8621, 9088, 9320, 10508, 11360, 11840, 13135, 14912, 16543, 17242, 18640, 21016, 22720, 23680, 26270, 29824, 33086, 34484, 37280, 42032, 43105, 45440, 52540, 66172, 68968, 74560, 82715, 84064, 86210, 105080, 132344, 137936, 149120, 165430, 168128, 172420, 210160, 264688, 275872, 330860, 336256, 344840, 420320, 529376, 551744, 612091, 661720, 689680, 840640, 1058752, 1103488, 1224182, 1323440, 1379360, 1681280, 2117504, 2448364, 2646880, 2758720, 3060455, 4896728, 5293760, 5517440, 6120910, 9793456, 10587520, 12241820, 19586912, 24483640, 39173824, 48967280, 78347648, 97934560, 195869120, 391738240]

約数ペア:

[(1, 391738240), (2, 195869120), (4, 97934560), (5, 78347648), (8, 48967280), (10, 39173824), (16, 24483640), (20, 19586912), (32, 12241820), (37, 10587520), (40, 9793456), (64, 6120910), (71, 5517440), (74, 5293760), (80, 4896728), (128, 3060455), (142, 2758720), (148, 2646880), (160, 2448364), (185, 2117504), (233, 1681280), (284, 1379360), (296, 1323440), (320, 1224182), (355, 1103488), (370, 1058752), (466, 840640), (568, 689680), (592, 661720), (640, 612091), (710, 551744), (740, 529376), (932, 420320), (1136, 344840), (1165, 336256), (1184, 330860), (1420, 275872), (1480, 264688), (1864, 210160), (2272, 172420), (2330, 168128), (2368, 165430), (2627, 149120), (2840, 137936), (2960, 132344), (3728, 105080), (4544, 86210), (4660, 84064), (4736, 82715), (5254, 74560), (5680, 68968), (5920, 66172), (7456, 52540), (8621, 45440), (9088, 43105), (9320, 42032), (10508, 37280), (11360, 34484), (11840, 33086), (13135, 29824), (14912, 26270), (16543, 23680), (17242, 22720), (18640, 21016)]