668847280

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{157747}}^1$

素因数の和:157813

約数の個数: 40

約数和(自身を含む): 1584420912

約数和(自身を除く): 915573632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 157747, 315494, 630988, 788735, 1261976, 1577470, 2523952, 3154940, 6309880, 8360591, 12619760, 16721182, 33442364, 41802955, 66884728, 83605910, 133769456, 167211820, 334423640, 668847280]

約数ペア:

[(1, 668847280), (2, 334423640), (4, 167211820), (5, 133769456), (8, 83605910), (10, 66884728), (16, 41802955), (20, 33442364), (40, 16721182), (53, 12619760), (80, 8360591), (106, 6309880), (212, 3154940), (265, 2523952), (424, 1577470), (530, 1261976), (848, 788735), (1060, 630988), (2120, 315494), (4240, 157747)]