66213890

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{521}}^1$

素因数の和:778

約数の個数: 32

約数和(自身を含む): 121772160

約数和(自身を除く): 55558270

約数列:

[1, 2, 5, 10, 71, 142, 179, 355, 358, 521, 710, 895, 1042, 1790, 2605, 5210, 12709, 25418, 36991, 63545, 73982, 93259, 127090, 184955, 186518, 369910, 466295, 932590, 6621389, 13242778, 33106945, 66213890]

約数ペア:

[(1, 66213890), (2, 33106945), (5, 13242778), (10, 6621389), (71, 932590), (142, 466295), (179, 369910), (355, 186518), (358, 184955), (521, 127090), (710, 93259), (895, 73982), (1042, 63545), (1790, 36991), (2605, 25418), (5210, 12709)]