31191985

素因数分解:

$5^1\times {\mathrm{11}}^3\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:190

約数の個数: 32

約数和(自身を含む): 42514560

約数和(自身を除く): 11322575

約数列:

[1, 5, 11, 43, 55, 109, 121, 215, 473, 545, 605, 1199, 1331, 2365, 4687, 5203, 5995, 6655, 13189, 23435, 26015, 51557, 57233, 65945, 145079, 257785, 286165, 567127, 725395, 2835635, 6238397, 31191985]

約数ペア:

[(1, 31191985), (5, 6238397), (11, 2835635), (43, 725395), (55, 567127), (109, 286165), (121, 257785), (215, 145079), (473, 65945), (545, 57233), (605, 51557), (1199, 26015), (1331, 23435), (2365, 13189), (4687, 6655), (5203, 5995)]