15947480

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{947}}^1$

素因数の和:1379

約数の個数: 32

約数和(自身を含む): 36005040

約数和(自身を除く): 20057560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 947, 1684, 1894, 2105, 3368, 3788, 4210, 4735, 7576, 8420, 9470, 16840, 18940, 37880, 398687, 797374, 1594748, 1993435, 3189496, 3986870, 7973740, 15947480]

約数ペア:

[(1, 15947480), (2, 7973740), (4, 3986870), (5, 3189496), (8, 1993435), (10, 1594748), (20, 797374), (40, 398687), (421, 37880), (842, 18940), (947, 16840), (1684, 9470), (1894, 8420), (2105, 7576), (3368, 4735), (3788, 4210)]