319048880

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{461}}^1$

素因数の和:726

約数の個数: 80

約数和(自身を含む): 765138528

約数和(自身を除く): 446089648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 211, 328, 410, 422, 461, 656, 820, 844, 922, 1055, 1640, 1688, 1844, 2110, 2305, 3280, 3376, 3688, 4220, 4610, 7376, 8440, 8651, 9220, 16880, 17302, 18440, 18901, 34604, 36880, 37802, 43255, 69208, 75604, 86510, 94505, 97271, 138416, 151208, 173020, 189010, 194542, 302416, 346040, 378020, 389084, 486355, 692080, 756040, 778168, 972710, 1512080, 1556336, 1945420, 3890840, 3988111, 7781680, 7976222, 15952444, 19940555, 31904888, 39881110, 63809776, 79762220, 159524440, 319048880]

約数ペア:

[(1, 319048880), (2, 159524440), (4, 79762220), (5, 63809776), (8, 39881110), (10, 31904888), (16, 19940555), (20, 15952444), (40, 7976222), (41, 7781680), (80, 3988111), (82, 3890840), (164, 1945420), (205, 1556336), (211, 1512080), (328, 972710), (410, 778168), (422, 756040), (461, 692080), (656, 486355), (820, 389084), (844, 378020), (922, 346040), (1055, 302416), (1640, 194542), (1688, 189010), (1844, 173020), (2110, 151208), (2305, 138416), (3280, 97271), (3376, 94505), (3688, 86510), (4220, 75604), (4610, 69208), (7376, 43255), (8440, 37802), (8651, 36880), (9220, 34604), (16880, 18901), (17302, 18440)]