81278590

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{9041}}^1$

素因数の和:9108

約数の個数: 32

約数和(自身を含む): 156245760

約数和(自身を除く): 74967170

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 899, 1798, 4495, 8990, 9041, 18082, 45205, 90410, 262189, 280271, 524378, 560542, 1310945, 1401355, 2621890, 2802710, 8127859, 16255718, 40639295, 81278590]

約数ペア:

[(1, 81278590), (2, 40639295), (5, 16255718), (10, 8127859), (29, 2802710), (31, 2621890), (58, 1401355), (62, 1310945), (145, 560542), (155, 524378), (290, 280271), (310, 262189), (899, 90410), (1798, 45205), (4495, 18082), (8990, 9041)]