31032680

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:319

約数の個数: 96

約数和(自身を含む): 82736640

約数和(自身を除く): 51703960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 71, 98, 140, 142, 196, 223, 245, 280, 284, 355, 392, 446, 490, 497, 568, 710, 892, 980, 994, 1115, 1420, 1561, 1784, 1960, 1988, 2230, 2485, 2840, 3122, 3479, 3976, 4460, 4970, 6244, 6958, 7805, 8920, 9940, 10927, 12488, 13916, 15610, 15833, 17395, 19880, 21854, 27832, 31220, 31666, 34790, 43708, 54635, 62440, 63332, 69580, 79165, 87416, 109270, 110831, 126664, 139160, 158330, 218540, 221662, 316660, 437080, 443324, 554155, 633320, 775817, 886648, 1108310, 1551634, 2216620, 3103268, 3879085, 4433240, 6206536, 7758170, 15516340, 31032680]

約数ペア:

[(1, 31032680), (2, 15516340), (4, 7758170), (5, 6206536), (7, 4433240), (8, 3879085), (10, 3103268), (14, 2216620), (20, 1551634), (28, 1108310), (35, 886648), (40, 775817), (49, 633320), (56, 554155), (70, 443324), (71, 437080), (98, 316660), (140, 221662), (142, 218540), (196, 158330), (223, 139160), (245, 126664), (280, 110831), (284, 109270), (355, 87416), (392, 79165), (446, 69580), (490, 63332), (497, 62440), (568, 54635), (710, 43708), (892, 34790), (980, 31666), (994, 31220), (1115, 27832), (1420, 21854), (1561, 19880), (1784, 17395), (1960, 15833), (1988, 15610), (2230, 13916), (2485, 12488), (2840, 10927), (3122, 9940), (3479, 8920), (3976, 7805), (4460, 6958), (4970, 6244)]