80029760

素因数分解:

$2^6\times 5^1\times {\mathrm{449}}^1\times {\mathrm{557}}^1$

素因数の和:1023

約数の個数: 56

約数和(自身を含む): 191338200

約数和(自身を除く): 111308440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 449, 557, 898, 1114, 1796, 2228, 2245, 2785, 3592, 4456, 4490, 5570, 7184, 8912, 8980, 11140, 14368, 17824, 17960, 22280, 28736, 35648, 35920, 44560, 71840, 89120, 143680, 178240, 250093, 500186, 1000372, 1250465, 2000744, 2500930, 4001488, 5001860, 8002976, 10003720, 16005952, 20007440, 40014880, 80029760]

約数ペア:

[(1, 80029760), (2, 40014880), (4, 20007440), (5, 16005952), (8, 10003720), (10, 8002976), (16, 5001860), (20, 4001488), (32, 2500930), (40, 2000744), (64, 1250465), (80, 1000372), (160, 500186), (320, 250093), (449, 178240), (557, 143680), (898, 89120), (1114, 71840), (1796, 44560), (2228, 35920), (2245, 35648), (2785, 28736), (3592, 22280), (4456, 17960), (4490, 17824), (5570, 14368), (7184, 11140), (8912, 8980)]