20539620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2153}}^1$

素因数の和:2221

約数の個数: 72

約数和(自身を含む): 63508536

約数和(自身を除く): 42968916

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2153, 2385, 3180, 4306, 4770, 6459, 8612, 9540, 10765, 12918, 19377, 21530, 25836, 32295, 38754, 43060, 64590, 77508, 96885, 114109, 129180, 193770, 228218, 342327, 387540, 456436, 570545, 684654, 1026981, 1141090, 1369308, 1711635, 2053962, 2282180, 3423270, 4107924, 5134905, 6846540, 10269810, 20539620]

約数ペア:

[(1, 20539620), (2, 10269810), (3, 6846540), (4, 5134905), (5, 4107924), (6, 3423270), (9, 2282180), (10, 2053962), (12, 1711635), (15, 1369308), (18, 1141090), (20, 1026981), (30, 684654), (36, 570545), (45, 456436), (53, 387540), (60, 342327), (90, 228218), (106, 193770), (159, 129180), (180, 114109), (212, 96885), (265, 77508), (318, 64590), (477, 43060), (530, 38754), (636, 32295), (795, 25836), (954, 21530), (1060, 19377), (1590, 12918), (1908, 10765), (2153, 9540), (2385, 8612), (3180, 6459), (4306, 4770)]