211344280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10631}}^1$

素因数の和:10720

約数の個数: 64

約数和(自身を含む): 551162880

約数和(自身を除く): 339818600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3976, 4970, 9940, 10631, 19880, 21262, 42524, 53155, 74417, 85048, 106310, 148834, 212620, 297668, 372085, 425240, 595336, 744170, 754801, 1488340, 1509602, 2976680, 3019204, 3774005, 5283607, 6038408, 7548010, 10567214, 15096020, 21134428, 26418035, 30192040, 42268856, 52836070, 105672140, 211344280]

約数ペア:

[(1, 211344280), (2, 105672140), (4, 52836070), (5, 42268856), (7, 30192040), (8, 26418035), (10, 21134428), (14, 15096020), (20, 10567214), (28, 7548010), (35, 6038408), (40, 5283607), (56, 3774005), (70, 3019204), (71, 2976680), (140, 1509602), (142, 1488340), (280, 754801), (284, 744170), (355, 595336), (497, 425240), (568, 372085), (710, 297668), (994, 212620), (1420, 148834), (1988, 106310), (2485, 85048), (2840, 74417), (3976, 53155), (4970, 42524), (9940, 21262), (10631, 19880)]