30124780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2011}}^1$

素因数の和:2134

約数の個数: 48

約数和(自身を含む): 73011456

約数和(自身を除く): 42886676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 107, 140, 214, 428, 535, 749, 1070, 1498, 2011, 2140, 2996, 3745, 4022, 7490, 8044, 10055, 14077, 14980, 20110, 28154, 40220, 56308, 70385, 140770, 215177, 281540, 430354, 860708, 1075885, 1506239, 2151770, 3012478, 4303540, 6024956, 7531195, 15062390, 30124780]

約数ペア:

[(1, 30124780), (2, 15062390), (4, 7531195), (5, 6024956), (7, 4303540), (10, 3012478), (14, 2151770), (20, 1506239), (28, 1075885), (35, 860708), (70, 430354), (107, 281540), (140, 215177), (214, 140770), (428, 70385), (535, 56308), (749, 40220), (1070, 28154), (1498, 20110), (2011, 14980), (2140, 14077), (2996, 10055), (3745, 8044), (4022, 7490)]