20406460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1277}}^1$

素因数の和:1350

約数の個数: 48

約数和(自身を含む): 46376064

約数和(自身を除く): 25969604

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 340, 470, 799, 940, 1277, 1598, 2554, 3196, 3995, 5108, 6385, 7990, 12770, 15980, 21709, 25540, 43418, 60019, 86836, 108545, 120038, 217090, 240076, 300095, 434180, 600190, 1020323, 1200380, 2040646, 4081292, 5101615, 10203230, 20406460]

約数ペア:

[(1, 20406460), (2, 10203230), (4, 5101615), (5, 4081292), (10, 2040646), (17, 1200380), (20, 1020323), (34, 600190), (47, 434180), (68, 300095), (85, 240076), (94, 217090), (170, 120038), (188, 108545), (235, 86836), (340, 60019), (470, 43418), (799, 25540), (940, 21709), (1277, 15980), (1598, 12770), (2554, 7990), (3196, 6385), (3995, 5108)]