20855350

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{757}}^1$

素因数の和:817

約数の個数: 48

約数和(自身を含む): 42296400

約数和(自身を除く): 21441050

約数列:

[1, 2, 5, 10, 19, 25, 29, 38, 50, 58, 95, 145, 190, 290, 475, 551, 725, 757, 950, 1102, 1450, 1514, 2755, 3785, 5510, 7570, 13775, 14383, 18925, 21953, 27550, 28766, 37850, 43906, 71915, 109765, 143830, 219530, 359575, 417107, 548825, 719150, 834214, 1097650, 2085535, 4171070, 10427675, 20855350]

約数ペア:

[(1, 20855350), (2, 10427675), (5, 4171070), (10, 2085535), (19, 1097650), (25, 834214), (29, 719150), (38, 548825), (50, 417107), (58, 359575), (95, 219530), (145, 143830), (190, 109765), (290, 71915), (475, 43906), (551, 37850), (725, 28766), (757, 27550), (950, 21953), (1102, 18925), (1450, 14383), (1514, 13775), (2755, 7570), (3785, 5510)]