61938160

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{7103}}^1$

素因数の和:7225

約数の個数: 40

約数和(自身を含む): 145347840

約数和(自身を除く): 83409680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 7103, 8720, 14206, 28412, 35515, 56824, 71030, 113648, 142060, 284120, 568240, 774227, 1548454, 3096908, 3871135, 6193816, 7742270, 12387632, 15484540, 30969080, 61938160]

約数ペア:

[(1, 61938160), (2, 30969080), (4, 15484540), (5, 12387632), (8, 7742270), (10, 6193816), (16, 3871135), (20, 3096908), (40, 1548454), (80, 774227), (109, 568240), (218, 284120), (436, 142060), (545, 113648), (872, 71030), (1090, 56824), (1744, 35515), (2180, 28412), (4360, 14206), (7103, 8720)]