20529180

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5431}}^1$

素因数の和:5456

約数の個数: 96

約数和(自身を含む): 73006080

約数和(自身を除く): 52476900

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, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 5431, 10862, 16293, 21724, 27155, 32586, 38017, 48879, 54310, 65172, 76034, 81465, 97758, 108620, 114051, 146637, 152068, 162930, 190085, 195516, 228102, 244395, 293274, 325860, 342153, 380170, 456204, 488790, 570255, 586548, 684306, 733185, 760340, 977580, 1026459, 1140510, 1368612, 1466370, 1710765, 2052918, 2281020, 2932740, 3421530, 4105836, 5132295, 6843060, 10264590, 20529180]

約数ペア:

[(1, 20529180), (2, 10264590), (3, 6843060), (4, 5132295), (5, 4105836), (6, 3421530), (7, 2932740), (9, 2281020), (10, 2052918), (12, 1710765), (14, 1466370), (15, 1368612), (18, 1140510), (20, 1026459), (21, 977580), (27, 760340), (28, 733185), (30, 684306), (35, 586548), (36, 570255), (42, 488790), (45, 456204), (54, 380170), (60, 342153), (63, 325860), (70, 293274), (84, 244395), (90, 228102), (105, 195516), (108, 190085), (126, 162930), (135, 152068), (140, 146637), (180, 114051), (189, 108620), (210, 97758), (252, 81465), (270, 76034), (315, 65172), (378, 54310), (420, 48879), (540, 38017), (630, 32586), (756, 27155), (945, 21724), (1260, 16293), (1890, 10862), (3780, 5431)]