71893880

素因数分解:

$2^3\times 5^1\times {\mathrm{449}}^1\times {\mathrm{4003}}^1$

素因数の和:4463

約数の個数: 32

約数和(自身を含む): 162162000

約数和(自身を除く): 90268120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 449, 898, 1796, 2245, 3592, 4003, 4490, 8006, 8980, 16012, 17960, 20015, 32024, 40030, 80060, 160120, 1797347, 3594694, 7189388, 8986735, 14378776, 17973470, 35946940, 71893880]

約数ペア:

[(1, 71893880), (2, 35946940), (4, 17973470), (5, 14378776), (8, 8986735), (10, 7189388), (20, 3594694), (40, 1797347), (449, 160120), (898, 80060), (1796, 40030), (2245, 32024), (3592, 20015), (4003, 17960), (4490, 16012), (8006, 8980)]