145909580

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{66931}}^1$

素因数の和:67049

約数の個数: 24

約数和(自身を含む): 309225840

約数和(自身を除く): 163316260

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 66931, 133862, 267724, 334655, 669310, 1338620, 7295479, 14590958, 29181916, 36477395, 72954790, 145909580]

約数ペア:

[(1, 145909580), (2, 72954790), (4, 36477395), (5, 29181916), (10, 14590958), (20, 7295479), (109, 1338620), (218, 669310), (436, 334655), (545, 267724), (1090, 133862), (2180, 66931)]