256760920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{8369}}^1$

素因数の和:8452

約数の個数: 64

約数和(自身を含む): 632772000

約数和(自身を除く): 376011080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 59, 65, 104, 118, 130, 236, 260, 295, 472, 520, 590, 767, 1180, 1534, 2360, 3068, 3835, 6136, 7670, 8369, 15340, 16738, 30680, 33476, 41845, 66952, 83690, 108797, 167380, 217594, 334760, 435188, 493771, 543985, 870376, 987542, 1087970, 1975084, 2175940, 2468855, 3950168, 4351880, 4937710, 6419023, 9875420, 12838046, 19750840, 25676092, 32095115, 51352184, 64190230, 128380460, 256760920]

約数ペア:

[(1, 256760920), (2, 128380460), (4, 64190230), (5, 51352184), (8, 32095115), (10, 25676092), (13, 19750840), (20, 12838046), (26, 9875420), (40, 6419023), (52, 4937710), (59, 4351880), (65, 3950168), (104, 2468855), (118, 2175940), (130, 1975084), (236, 1087970), (260, 987542), (295, 870376), (472, 543985), (520, 493771), (590, 435188), (767, 334760), (1180, 217594), (1534, 167380), (2360, 108797), (3068, 83690), (3835, 66952), (6136, 41845), (7670, 33476), (8369, 30680), (15340, 16738)]