18519520

素因数分解:

$2^5\times 5^1\times {\mathrm{283}}^1\times {\mathrm{409}}^1$

素因数の和:707

約数の個数: 48

約数和(自身を含む): 44014320

約数和(自身を除く): 25494800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 283, 409, 566, 818, 1132, 1415, 1636, 2045, 2264, 2830, 3272, 4090, 4528, 5660, 6544, 8180, 9056, 11320, 13088, 16360, 22640, 32720, 45280, 65440, 115747, 231494, 462988, 578735, 925976, 1157470, 1851952, 2314940, 3703904, 4629880, 9259760, 18519520]

約数ペア:

[(1, 18519520), (2, 9259760), (4, 4629880), (5, 3703904), (8, 2314940), (10, 1851952), (16, 1157470), (20, 925976), (32, 578735), (40, 462988), (80, 231494), (160, 115747), (283, 65440), (409, 45280), (566, 32720), (818, 22640), (1132, 16360), (1415, 13088), (1636, 11320), (2045, 9056), (2264, 8180), (2830, 6544), (3272, 5660), (4090, 4528)]