18615850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:232

約数の個数: 72

約数和(自身を含む): 40520844

約数和(自身を除く): 21904994

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 50, 55, 85, 110, 121, 170, 181, 187, 242, 275, 362, 374, 425, 550, 605, 850, 905, 935, 1210, 1810, 1870, 1991, 2057, 3025, 3077, 3982, 4114, 4525, 4675, 6050, 6154, 9050, 9350, 9955, 10285, 15385, 19910, 20570, 21901, 30770, 33847, 43802, 49775, 51425, 67694, 76925, 99550, 102850, 109505, 153850, 169235, 219010, 338470, 372317, 547525, 744634, 846175, 1095050, 1692350, 1861585, 3723170, 9307925, 18615850]

約数ペア:

[(1, 18615850), (2, 9307925), (5, 3723170), (10, 1861585), (11, 1692350), (17, 1095050), (22, 846175), (25, 744634), (34, 547525), (50, 372317), (55, 338470), (85, 219010), (110, 169235), (121, 153850), (170, 109505), (181, 102850), (187, 99550), (242, 76925), (275, 67694), (362, 51425), (374, 49775), (425, 43802), (550, 33847), (605, 30770), (850, 21901), (905, 20570), (935, 19910), (1210, 15385), (1810, 10285), (1870, 9955), (1991, 9350), (2057, 9050), (3025, 6154), (3077, 6050), (3982, 4675), (4114, 4525)]