161249865

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{617}}^1$

素因数の和:782

約数の個数: 64

約数和(自身を含む): 313251840

約数和(自身を除く): 152001975

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 131, 133, 285, 393, 399, 617, 655, 665, 917, 1851, 1965, 1995, 2489, 2751, 3085, 4319, 4585, 7467, 9255, 11723, 12445, 12957, 13755, 17423, 21595, 35169, 37335, 52269, 58615, 64785, 80827, 82061, 87115, 175845, 242481, 246183, 261345, 404135, 410305, 565789, 1212405, 1230915, 1535713, 1697367, 2828945, 4607139, 7678565, 8486835, 10749991, 23035695, 32249973, 53749955, 161249865]

約数ペア:

[(1, 161249865), (3, 53749955), (5, 32249973), (7, 23035695), (15, 10749991), (19, 8486835), (21, 7678565), (35, 4607139), (57, 2828945), (95, 1697367), (105, 1535713), (131, 1230915), (133, 1212405), (285, 565789), (393, 410305), (399, 404135), (617, 261345), (655, 246183), (665, 242481), (917, 175845), (1851, 87115), (1965, 82061), (1995, 80827), (2489, 64785), (2751, 58615), (3085, 52269), (4319, 37335), (4585, 35169), (7467, 21595), (9255, 17423), (11723, 13755), (12445, 12957)]