31903360

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{631}}^1$

素因数の和:729

約数の個数: 64

約数和(自身を含む): 77356800

約数和(自身を除く): 45453440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 395, 631, 632, 640, 790, 1262, 1264, 1580, 2524, 2528, 3155, 3160, 5048, 5056, 6310, 6320, 10096, 10112, 12620, 12640, 20192, 25240, 25280, 40384, 49849, 50480, 50560, 80768, 99698, 100960, 199396, 201920, 249245, 398792, 403840, 498490, 797584, 996980, 1595168, 1993960, 3190336, 3987920, 6380672, 7975840, 15951680, 31903360]

約数ペア:

[(1, 31903360), (2, 15951680), (4, 7975840), (5, 6380672), (8, 3987920), (10, 3190336), (16, 1993960), (20, 1595168), (32, 996980), (40, 797584), (64, 498490), (79, 403840), (80, 398792), (128, 249245), (158, 201920), (160, 199396), (316, 100960), (320, 99698), (395, 80768), (631, 50560), (632, 50480), (640, 49849), (790, 40384), (1262, 25280), (1264, 25240), (1580, 20192), (2524, 12640), (2528, 12620), (3155, 10112), (3160, 10096), (5048, 6320), (5056, 6310)]