71939960

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{13729}}^1$

素因数の和:13871

約数の個数: 32

約数和(自身を含む): 163112400

約数和(自身を除く): 91172440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 13729, 27458, 54916, 68645, 109832, 137290, 274580, 549160, 1798499, 3596998, 7193996, 8992495, 14387992, 17984990, 35969980, 71939960]

約数ペア:

[(1, 71939960), (2, 35969980), (4, 17984990), (5, 14387992), (8, 8992495), (10, 7193996), (20, 3596998), (40, 1798499), (131, 549160), (262, 274580), (524, 137290), (655, 109832), (1048, 68645), (1310, 54916), (2620, 27458), (5240, 13729)]