81329740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2791}}^1$

素因数の和:2878

約数の個数: 48

約数和(自身を含む): 180117504

約数和(自身を除く): 98787764

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 62, 94, 124, 155, 188, 235, 310, 470, 620, 940, 1457, 2791, 2914, 5582, 5828, 7285, 11164, 13955, 14570, 27910, 29140, 55820, 86521, 131177, 173042, 262354, 346084, 432605, 524708, 655885, 865210, 1311770, 1730420, 2623540, 4066487, 8132974, 16265948, 20332435, 40664870, 81329740]

約数ペア:

[(1, 81329740), (2, 40664870), (4, 20332435), (5, 16265948), (10, 8132974), (20, 4066487), (31, 2623540), (47, 1730420), (62, 1311770), (94, 865210), (124, 655885), (155, 524708), (188, 432605), (235, 346084), (310, 262354), (470, 173042), (620, 131177), (940, 86521), (1457, 55820), (2791, 29140), (2914, 27910), (5582, 14570), (5828, 13955), (7285, 11164)]