20512680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3637}}^1$

素因数の和:3698

約数の個数: 64

約数和(自身を含む): 62864640

約数和(自身を除く): 42351960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 120, 141, 188, 235, 282, 376, 470, 564, 705, 940, 1128, 1410, 1880, 2820, 3637, 5640, 7274, 10911, 14548, 18185, 21822, 29096, 36370, 43644, 54555, 72740, 87288, 109110, 145480, 170939, 218220, 341878, 436440, 512817, 683756, 854695, 1025634, 1367512, 1709390, 2051268, 2564085, 3418780, 4102536, 5128170, 6837560, 10256340, 20512680]

約数ペア:

[(1, 20512680), (2, 10256340), (3, 6837560), (4, 5128170), (5, 4102536), (6, 3418780), (8, 2564085), (10, 2051268), (12, 1709390), (15, 1367512), (20, 1025634), (24, 854695), (30, 683756), (40, 512817), (47, 436440), (60, 341878), (94, 218220), (120, 170939), (141, 145480), (188, 109110), (235, 87288), (282, 72740), (376, 54555), (470, 43644), (564, 36370), (705, 29096), (940, 21822), (1128, 18185), (1410, 14548), (1880, 10911), (2820, 7274), (3637, 5640)]