25716080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:418

約数の個数: 80

約数和(自身を含む): 65412480

約数和(自身を除く): 39696400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 208, 260, 313, 316, 395, 520, 626, 632, 790, 1027, 1040, 1252, 1264, 1565, 1580, 2054, 2504, 3130, 3160, 4069, 4108, 5008, 5135, 6260, 6320, 8138, 8216, 10270, 12520, 16276, 16432, 20345, 20540, 24727, 25040, 32552, 40690, 41080, 49454, 65104, 81380, 82160, 98908, 123635, 162760, 197816, 247270, 321451, 325520, 395632, 494540, 642902, 989080, 1285804, 1607255, 1978160, 2571608, 3214510, 5143216, 6429020, 12858040, 25716080]

約数ペア:

[(1, 25716080), (2, 12858040), (4, 6429020), (5, 5143216), (8, 3214510), (10, 2571608), (13, 1978160), (16, 1607255), (20, 1285804), (26, 989080), (40, 642902), (52, 494540), (65, 395632), (79, 325520), (80, 321451), (104, 247270), (130, 197816), (158, 162760), (208, 123635), (260, 98908), (313, 82160), (316, 81380), (395, 65104), (520, 49454), (626, 41080), (632, 40690), (790, 32552), (1027, 25040), (1040, 24727), (1252, 20540), (1264, 20345), (1565, 16432), (1580, 16276), (2054, 12520), (2504, 10270), (3130, 8216), (3160, 8138), (4069, 6320), (4108, 6260), (5008, 5135)]