220915455

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1\times {\mathrm{2039}}^1$

素因数の和:2311

約数の個数: 32

約数和(自身を含む): 366612480

約数和(自身を除く): 145697025

約数列:

[1, 3, 5, 15, 31, 93, 155, 233, 465, 699, 1165, 2039, 3495, 6117, 7223, 10195, 21669, 30585, 36115, 63209, 108345, 189627, 316045, 475087, 948135, 1425261, 2375435, 7126305, 14727697, 44183091, 73638485, 220915455]

約数ペア:

[(1, 220915455), (3, 73638485), (5, 44183091), (15, 14727697), (31, 7126305), (93, 2375435), (155, 1425261), (233, 948135), (465, 475087), (699, 316045), (1165, 189627), (2039, 108345), (3495, 63209), (6117, 36115), (7223, 30585), (10195, 21669)]