90427420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{839}}^1$

素因数の和:1182

約数の個数: 48

約数和(自身を含む): 201942720

約数和(自身を除く): 111515300

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 317, 340, 634, 839, 1268, 1585, 1678, 3170, 3356, 4195, 5389, 6340, 8390, 10778, 14263, 16780, 21556, 26945, 28526, 53890, 57052, 71315, 107780, 142630, 265963, 285260, 531926, 1063852, 1329815, 2659630, 4521371, 5319260, 9042742, 18085484, 22606855, 45213710, 90427420]

約数ペア:

[(1, 90427420), (2, 45213710), (4, 22606855), (5, 18085484), (10, 9042742), (17, 5319260), (20, 4521371), (34, 2659630), (68, 1329815), (85, 1063852), (170, 531926), (317, 285260), (340, 265963), (634, 142630), (839, 107780), (1268, 71315), (1585, 57052), (1678, 53890), (3170, 28526), (3356, 26945), (4195, 21556), (5389, 16780), (6340, 14263), (8390, 10778)]