20687640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10141}}^1$

素因数の和:10172

約数の個数: 64

約数和(自身を含む): 65720160

約数和(自身を除く): 45032520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 10141, 20282, 30423, 40564, 50705, 60846, 81128, 101410, 121692, 152115, 172397, 202820, 243384, 304230, 344794, 405640, 517191, 608460, 689588, 861985, 1034382, 1216920, 1379176, 1723970, 2068764, 2585955, 3447940, 4137528, 5171910, 6895880, 10343820, 20687640]

約数ペア:

[(1, 20687640), (2, 10343820), (3, 6895880), (4, 5171910), (5, 4137528), (6, 3447940), (8, 2585955), (10, 2068764), (12, 1723970), (15, 1379176), (17, 1216920), (20, 1034382), (24, 861985), (30, 689588), (34, 608460), (40, 517191), (51, 405640), (60, 344794), (68, 304230), (85, 243384), (102, 202820), (120, 172397), (136, 152115), (170, 121692), (204, 101410), (255, 81128), (340, 60846), (408, 50705), (510, 40564), (680, 30423), (1020, 20282), (2040, 10141)]