172421240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{148639}}^1$

素因数の和:148679

約数の個数: 32

約数和(自身を含む): 401328000

約数和(自身を除く): 228906760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 148639, 297278, 594556, 743195, 1189112, 1486390, 2972780, 4310531, 5945560, 8621062, 17242124, 21552655, 34484248, 43105310, 86210620, 172421240]

約数ペア:

[(1, 172421240), (2, 86210620), (4, 43105310), (5, 34484248), (8, 21552655), (10, 17242124), (20, 8621062), (29, 5945560), (40, 4310531), (58, 2972780), (116, 1486390), (145, 1189112), (232, 743195), (290, 594556), (580, 297278), (1160, 148639)]