31357150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:178

約数の個数: 72

約数和(自身を含む): 65902032

約数和(自身を除く): 34544882

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 71, 73, 110, 121, 142, 146, 242, 275, 355, 365, 550, 605, 710, 730, 781, 803, 1210, 1562, 1606, 1775, 1825, 3025, 3550, 3650, 3905, 4015, 5183, 6050, 7810, 8030, 8591, 8833, 10366, 17182, 17666, 19525, 20075, 25915, 39050, 40150, 42955, 44165, 51830, 57013, 85910, 88330, 114026, 129575, 214775, 220825, 259150, 285065, 429550, 441650, 570130, 627143, 1254286, 1425325, 2850650, 3135715, 6271430, 15678575, 31357150]

約数ペア:

[(1, 31357150), (2, 15678575), (5, 6271430), (10, 3135715), (11, 2850650), (22, 1425325), (25, 1254286), (50, 627143), (55, 570130), (71, 441650), (73, 429550), (110, 285065), (121, 259150), (142, 220825), (146, 214775), (242, 129575), (275, 114026), (355, 88330), (365, 85910), (550, 57013), (605, 51830), (710, 44165), (730, 42955), (781, 40150), (803, 39050), (1210, 25915), (1562, 20075), (1606, 19525), (1775, 17666), (1825, 17182), (3025, 10366), (3550, 8833), (3650, 8591), (3905, 8030), (4015, 7810), (5183, 6050)]