12931760

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1483}}^1$

素因数の和:1605

約数の個数: 40

約数和(自身を含む): 30362640

約数和(自身を除く): 17430880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1483, 1744, 2180, 2966, 4360, 5932, 7415, 8720, 11864, 14830, 23728, 29660, 59320, 118640, 161647, 323294, 646588, 808235, 1293176, 1616470, 2586352, 3232940, 6465880, 12931760]

約数ペア:

[(1, 12931760), (2, 6465880), (4, 3232940), (5, 2586352), (8, 1616470), (10, 1293176), (16, 808235), (20, 646588), (40, 323294), (80, 161647), (109, 118640), (218, 59320), (436, 29660), (545, 23728), (872, 14830), (1090, 11864), (1483, 8720), (1744, 7415), (2180, 5932), (2966, 4360)]