71886280

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{8059}}^1$

素因数の和:8293

約数の個数: 32

約数和(自身を含む): 162489600

約数和(自身を除く): 90603320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8059, 8920, 16118, 32236, 40295, 64472, 80590, 161180, 322360, 1797157, 3594314, 7188628, 8985785, 14377256, 17971570, 35943140, 71886280]

約数ペア:

[(1, 71886280), (2, 35943140), (4, 17971570), (5, 14377256), (8, 8985785), (10, 7188628), (20, 3594314), (40, 1797157), (223, 322360), (446, 161180), (892, 80590), (1115, 64472), (1784, 40295), (2230, 32236), (4460, 16118), (8059, 8920)]