155965480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{719}}^1$

素因数の和:787

約数の個数: 128

約数和(自身を含む): 419904000

約数和(自身を除く): 263938520

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 29, 34, 40, 44, 55, 58, 68, 85, 88, 110, 116, 136, 145, 170, 187, 220, 232, 290, 319, 340, 374, 440, 493, 580, 638, 680, 719, 748, 935, 986, 1160, 1276, 1438, 1496, 1595, 1870, 1972, 2465, 2552, 2876, 3190, 3595, 3740, 3944, 4930, 5423, 5752, 6380, 7190, 7480, 7909, 9860, 10846, 12223, 12760, 14380, 15818, 19720, 20851, 21692, 24446, 27115, 28760, 31636, 39545, 41702, 43384, 48892, 54230, 61115, 63272, 79090, 83404, 97784, 104255, 108460, 122230, 134453, 158180, 166808, 208510, 216920, 229361, 244460, 268906, 316360, 354467, 417020, 458722, 488920, 537812, 672265, 708934, 834040, 917444, 1075624, 1146805, 1344530, 1417868, 1772335, 1834888, 2293610, 2689060, 2835736, 3544670, 3899137, 4587220, 5378120, 7089340, 7798274, 9174440, 14178680, 15596548, 19495685, 31193096, 38991370, 77982740, 155965480]

約数ペア:

[(1, 155965480), (2, 77982740), (4, 38991370), (5, 31193096), (8, 19495685), (10, 15596548), (11, 14178680), (17, 9174440), (20, 7798274), (22, 7089340), (29, 5378120), (34, 4587220), (40, 3899137), (44, 3544670), (55, 2835736), (58, 2689060), (68, 2293610), (85, 1834888), (88, 1772335), (110, 1417868), (116, 1344530), (136, 1146805), (145, 1075624), (170, 917444), (187, 834040), (220, 708934), (232, 672265), (290, 537812), (319, 488920), (340, 458722), (374, 417020), (440, 354467), (493, 316360), (580, 268906), (638, 244460), (680, 229361), (719, 216920), (748, 208510), (935, 166808), (986, 158180), (1160, 134453), (1276, 122230), (1438, 108460), (1496, 104255), (1595, 97784), (1870, 83404), (1972, 79090), (2465, 63272), (2552, 61115), (2876, 54230), (3190, 48892), (3595, 43384), (3740, 41702), (3944, 39545), (4930, 31636), (5423, 28760), (5752, 27115), (6380, 24446), (7190, 21692), (7480, 20851), (7909, 19720), (9860, 15818), (10846, 14380), (12223, 12760)]