81625790

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{1471}}^1$

素因数の和:1688

約数の個数: 32

約数和(自身を含む): 152616960

約数和(自身を除く): 70991170

約数列:

[1, 2, 5, 10, 31, 62, 155, 179, 310, 358, 895, 1471, 1790, 2942, 5549, 7355, 11098, 14710, 27745, 45601, 55490, 91202, 228005, 263309, 456010, 526618, 1316545, 2633090, 8162579, 16325158, 40812895, 81625790]

約数ペア:

[(1, 81625790), (2, 40812895), (5, 16325158), (10, 8162579), (31, 2633090), (62, 1316545), (155, 526618), (179, 456010), (310, 263309), (358, 228005), (895, 91202), (1471, 55490), (1790, 45601), (2942, 27745), (5549, 14710), (7355, 11098)]