205615280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{937}}^1$

素因数の和:1174

約数の個数: 80

約数和(自身を含む): 517821024

約数和(自身を除く): 312205744

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 211, 260, 422, 520, 844, 937, 1040, 1055, 1688, 1874, 2110, 2743, 3376, 3748, 4220, 4685, 5486, 7496, 8440, 9370, 10972, 12181, 13715, 14992, 16880, 18740, 21944, 24362, 27430, 37480, 43888, 48724, 54860, 60905, 74960, 97448, 109720, 121810, 194896, 197707, 219440, 243620, 395414, 487240, 790828, 974480, 988535, 1581656, 1977070, 2570191, 3163312, 3954140, 5140382, 7908280, 10280764, 12850955, 15816560, 20561528, 25701910, 41123056, 51403820, 102807640, 205615280]

約数ペア:

[(1, 205615280), (2, 102807640), (4, 51403820), (5, 41123056), (8, 25701910), (10, 20561528), (13, 15816560), (16, 12850955), (20, 10280764), (26, 7908280), (40, 5140382), (52, 3954140), (65, 3163312), (80, 2570191), (104, 1977070), (130, 1581656), (208, 988535), (211, 974480), (260, 790828), (422, 487240), (520, 395414), (844, 243620), (937, 219440), (1040, 197707), (1055, 194896), (1688, 121810), (1874, 109720), (2110, 97448), (2743, 74960), (3376, 60905), (3748, 54860), (4220, 48724), (4685, 43888), (5486, 37480), (7496, 27430), (8440, 24362), (9370, 21944), (10972, 18740), (12181, 16880), (13715, 14992)]