20679540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{929}}^1$

素因数の和:1001

約数の個数: 96

約数和(自身を含む): 67495680

約数和(自身を除く): 46816140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 53, 60, 70, 84, 105, 106, 140, 159, 210, 212, 265, 318, 371, 420, 530, 636, 742, 795, 929, 1060, 1113, 1484, 1590, 1855, 1858, 2226, 2787, 3180, 3710, 3716, 4452, 4645, 5565, 5574, 6503, 7420, 9290, 11130, 11148, 13006, 13935, 18580, 19509, 22260, 26012, 27870, 32515, 39018, 49237, 55740, 65030, 78036, 97545, 98474, 130060, 147711, 195090, 196948, 246185, 295422, 344659, 390180, 492370, 590844, 689318, 738555, 984740, 1033977, 1378636, 1477110, 1723295, 2067954, 2954220, 3446590, 4135908, 5169885, 6893180, 10339770, 20679540]

約数ペア:

[(1, 20679540), (2, 10339770), (3, 6893180), (4, 5169885), (5, 4135908), (6, 3446590), (7, 2954220), (10, 2067954), (12, 1723295), (14, 1477110), (15, 1378636), (20, 1033977), (21, 984740), (28, 738555), (30, 689318), (35, 590844), (42, 492370), (53, 390180), (60, 344659), (70, 295422), (84, 246185), (105, 196948), (106, 195090), (140, 147711), (159, 130060), (210, 98474), (212, 97545), (265, 78036), (318, 65030), (371, 55740), (420, 49237), (530, 39018), (636, 32515), (742, 27870), (795, 26012), (929, 22260), (1060, 19509), (1113, 18580), (1484, 13935), (1590, 13006), (1855, 11148), (1858, 11130), (2226, 9290), (2787, 7420), (3180, 6503), (3710, 5574), (3716, 5565), (4452, 4645)]