81143760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{557}}^1\times {\mathrm{607}}^1$

素因数の和:1180

約数の個数: 80

約数和(自身を含む): 252412416

約数和(自身を除く): 171268656

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 557, 607, 1114, 1214, 1671, 1821, 2228, 2428, 2785, 3035, 3342, 3642, 4456, 4856, 5570, 6070, 6684, 7284, 8355, 8912, 9105, 9712, 11140, 12140, 13368, 14568, 16710, 18210, 22280, 24280, 26736, 29136, 33420, 36420, 44560, 48560, 66840, 72840, 133680, 145680, 338099, 676198, 1014297, 1352396, 1690495, 2028594, 2704792, 3380990, 4057188, 5071485, 5409584, 6761980, 8114376, 10142970, 13523960, 16228752, 20285940, 27047920, 40571880, 81143760]

約数ペア:

[(1, 81143760), (2, 40571880), (3, 27047920), (4, 20285940), (5, 16228752), (6, 13523960), (8, 10142970), (10, 8114376), (12, 6761980), (15, 5409584), (16, 5071485), (20, 4057188), (24, 3380990), (30, 2704792), (40, 2028594), (48, 1690495), (60, 1352396), (80, 1014297), (120, 676198), (240, 338099), (557, 145680), (607, 133680), (1114, 72840), (1214, 66840), (1671, 48560), (1821, 44560), (2228, 36420), (2428, 33420), (2785, 29136), (3035, 26736), (3342, 24280), (3642, 22280), (4456, 18210), (4856, 16710), (5570, 14568), (6070, 13368), (6684, 12140), (7284, 11140), (8355, 9712), (8912, 9105)]