71380840

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{4259}}^1$

素因数の和:4689

約数の個数: 32

約数和(自身を含む): 161028000

約数和(自身を除く): 89647160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1676, 2095, 3352, 4190, 4259, 8380, 8518, 16760, 17036, 21295, 34072, 42590, 85180, 170360, 1784521, 3569042, 7138084, 8922605, 14276168, 17845210, 35690420, 71380840]

約数ペア:

[(1, 71380840), (2, 35690420), (4, 17845210), (5, 14276168), (8, 8922605), (10, 7138084), (20, 3569042), (40, 1784521), (419, 170360), (838, 85180), (1676, 42590), (2095, 34072), (3352, 21295), (4190, 17036), (4259, 16760), (8380, 8518)]