12858040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:416

約数の個数: 64

約数和(自身を含む): 31651200

約数和(自身を除く): 18793160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 79, 104, 130, 158, 260, 313, 316, 395, 520, 626, 632, 790, 1027, 1252, 1565, 1580, 2054, 2504, 3130, 3160, 4069, 4108, 5135, 6260, 8138, 8216, 10270, 12520, 16276, 20345, 20540, 24727, 32552, 40690, 41080, 49454, 81380, 98908, 123635, 162760, 197816, 247270, 321451, 494540, 642902, 989080, 1285804, 1607255, 2571608, 3214510, 6429020, 12858040]

約数ペア:

[(1, 12858040), (2, 6429020), (4, 3214510), (5, 2571608), (8, 1607255), (10, 1285804), (13, 989080), (20, 642902), (26, 494540), (40, 321451), (52, 247270), (65, 197816), (79, 162760), (104, 123635), (130, 98908), (158, 81380), (260, 49454), (313, 41080), (316, 40690), (395, 32552), (520, 24727), (626, 20540), (632, 20345), (790, 16276), (1027, 12520), (1252, 10270), (1565, 8216), (1580, 8138), (2054, 6260), (2504, 5135), (3130, 4108), (3160, 4069)]