20536740

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{1811}}^1$

素因数の和:1839

約数の個数: 120

約数和(自身を含む): 73668672

約数和(自身を除く): 53131932

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1811, 1890, 2268, 2835, 3622, 3780, 5433, 5670, 7244, 9055, 10866, 11340, 12677, 16299, 18110, 21732, 25354, 27165, 32598, 36220, 38031, 48897, 50708, 54330, 63385, 65196, 76062, 81495, 97794, 108660, 114093, 126770, 146691, 152124, 162990, 190155, 195588, 228186, 244485, 253540, 293382, 325980, 342279, 380310, 456372, 488970, 570465, 586764, 684558, 733455, 760620, 977940, 1026837, 1140930, 1369116, 1466910, 1711395, 2053674, 2281860, 2933820, 3422790, 4107348, 5134185, 6845580, 10268370, 20536740]

約数ペア:

[(1, 20536740), (2, 10268370), (3, 6845580), (4, 5134185), (5, 4107348), (6, 3422790), (7, 2933820), (9, 2281860), (10, 2053674), (12, 1711395), (14, 1466910), (15, 1369116), (18, 1140930), (20, 1026837), (21, 977940), (27, 760620), (28, 733455), (30, 684558), (35, 586764), (36, 570465), (42, 488970), (45, 456372), (54, 380310), (60, 342279), (63, 325980), (70, 293382), (81, 253540), (84, 244485), (90, 228186), (105, 195588), (108, 190155), (126, 162990), (135, 152124), (140, 146691), (162, 126770), (180, 114093), (189, 108660), (210, 97794), (252, 81495), (270, 76062), (315, 65196), (324, 63385), (378, 54330), (405, 50708), (420, 48897), (540, 38031), (567, 36220), (630, 32598), (756, 27165), (810, 25354), (945, 21732), (1134, 18110), (1260, 16299), (1620, 12677), (1811, 11340), (1890, 10866), (2268, 9055), (2835, 7244), (3622, 5670), (3780, 5433)]