71601980

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{27329}}^1$

素因数の和:27469

約数の個数: 24

約数和(自身を含む): 151517520

約数和(自身を除く): 79915540

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 27329, 54658, 109316, 136645, 273290, 546580, 3580099, 7160198, 14320396, 17900495, 35800990, 71601980]

約数ペア:

[(1, 71601980), (2, 35800990), (4, 17900495), (5, 14320396), (10, 7160198), (20, 3580099), (131, 546580), (262, 273290), (524, 136645), (655, 109316), (1310, 54658), (2620, 27329)]