81285160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{10867}}^1$

素因数の和:10906

約数の個数: 64

約数和(自身を含む): 211273920

約数和(自身を除く): 129988760

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 3740, 7480, 10867, 21734, 43468, 54335, 86936, 108670, 119537, 184739, 217340, 239074, 369478, 434680, 478148, 597685, 738956, 923695, 956296, 1195370, 1477912, 1847390, 2032129, 2390740, 3694780, 4064258, 4781480, 7389560, 8128516, 10160645, 16257032, 20321290, 40642580, 81285160]

約数ペア:

[(1, 81285160), (2, 40642580), (4, 20321290), (5, 16257032), (8, 10160645), (10, 8128516), (11, 7389560), (17, 4781480), (20, 4064258), (22, 3694780), (34, 2390740), (40, 2032129), (44, 1847390), (55, 1477912), (68, 1195370), (85, 956296), (88, 923695), (110, 738956), (136, 597685), (170, 478148), (187, 434680), (220, 369478), (340, 239074), (374, 217340), (440, 184739), (680, 119537), (748, 108670), (935, 86936), (1496, 54335), (1870, 43468), (3740, 21734), (7480, 10867)]