28711425

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 50139648

約数和(自身を除く): 21428223

約数列:

[1, 3, 5, 15, 25, 31, 53, 75, 93, 155, 159, 233, 265, 465, 699, 775, 795, 1165, 1325, 1643, 2325, 3495, 3975, 4929, 5825, 7223, 8215, 12349, 17475, 21669, 24645, 36115, 37047, 41075, 61745, 108345, 123225, 180575, 185235, 308725, 382819, 541725, 926175, 1148457, 1914095, 5742285, 9570475, 28711425]

約数ペア:

[(1, 28711425), (3, 9570475), (5, 5742285), (15, 1914095), (25, 1148457), (31, 926175), (53, 541725), (75, 382819), (93, 308725), (155, 185235), (159, 180575), (233, 123225), (265, 108345), (465, 61745), (699, 41075), (775, 37047), (795, 36115), (1165, 24645), (1325, 21669), (1643, 17475), (2325, 12349), (3495, 8215), (3975, 7223), (4929, 5825)]