19199740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4729}}^1$

素因数の和:4774

約数の個数: 48

約数和(自身を含む): 47678400

約数和(自身を除く): 28478660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 4729, 9458, 18916, 23645, 33103, 47290, 66206, 94580, 132412, 137141, 165515, 274282, 331030, 548564, 662060, 685705, 959987, 1371410, 1919974, 2742820, 3839948, 4799935, 9599870, 19199740]

約数ペア:

[(1, 19199740), (2, 9599870), (4, 4799935), (5, 3839948), (7, 2742820), (10, 1919974), (14, 1371410), (20, 959987), (28, 685705), (29, 662060), (35, 548564), (58, 331030), (70, 274282), (116, 165515), (140, 137141), (145, 132412), (203, 94580), (290, 66206), (406, 47290), (580, 33103), (812, 23645), (1015, 18916), (2030, 9458), (4060, 4729)]