87584890

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1\times {\mathrm{439}}^1$

素因数の和:798

約数の個数: 32

約数和(自身を含む): 160807680

約数和(自身を除く): 73222790

約数列:

[1, 2, 5, 10, 71, 142, 281, 355, 439, 562, 710, 878, 1405, 2195, 2810, 4390, 19951, 31169, 39902, 62338, 99755, 123359, 155845, 199510, 246718, 311690, 616795, 1233590, 8758489, 17516978, 43792445, 87584890]

約数ペア:

[(1, 87584890), (2, 43792445), (5, 17516978), (10, 8758489), (71, 1233590), (142, 616795), (281, 311690), (355, 246718), (439, 199510), (562, 155845), (710, 123359), (878, 99755), (1405, 62338), (2195, 39902), (2810, 31169), (4390, 19951)]