1268656520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{737591}}^1$

素因数の和:737645

約数の個数: 32

約数和(自身を含む): 2920864320

約数和(自身を除く): 1652207800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 737591, 1475182, 2950364, 3687955, 5900728, 7375910, 14751820, 29503640, 31716413, 63432826, 126865652, 158582065, 253731304, 317164130, 634328260, 1268656520]

約数ペア:

[(1, 1268656520), (2, 634328260), (4, 317164130), (5, 253731304), (8, 158582065), (10, 126865652), (20, 63432826), (40, 31716413), (43, 29503640), (86, 14751820), (172, 7375910), (215, 5900728), (344, 3687955), (430, 2950364), (860, 1475182), (1720, 737591)]