161240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:179

約数の個数: 32

約数和(自身を含む): 378000

約数和(自身を除く): 216760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 139, 145, 232, 278, 290, 556, 580, 695, 1112, 1160, 1390, 2780, 4031, 5560, 8062, 16124, 20155, 32248, 40310, 80620, 161240]

約数ペア:

[(1, 161240), (2, 80620), (4, 40310), (5, 32248), (8, 20155), (10, 16124), (20, 8062), (29, 5560), (40, 4031), (58, 2780), (116, 1390), (139, 1160), (145, 1112), (232, 695), (278, 580), (290, 556)]