15531640

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4003}}^1$

素因数の和:4111

約数の個数: 32

約数和(自身を含む): 35315280

約数和(自身を除く): 19783640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 4003, 8006, 16012, 20015, 32024, 40030, 80060, 160120, 388291, 776582, 1553164, 1941455, 3106328, 3882910, 7765820, 15531640]

約数ペア:

[(1, 15531640), (2, 7765820), (4, 3882910), (5, 3106328), (8, 1941455), (10, 1553164), (20, 776582), (40, 388291), (97, 160120), (194, 80060), (388, 40030), (485, 32024), (776, 20015), (970, 16012), (1940, 8006), (3880, 4003)]