87413180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{140989}}^1$

素因数の和:141029

約数の個数: 24

約数和(自身を含む): 189490560

約数和(自身を除く): 102077380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 140989, 281978, 563956, 704945, 1409890, 2819780, 4370659, 8741318, 17482636, 21853295, 43706590, 87413180]

約数ペア:

[(1, 87413180), (2, 43706590), (4, 21853295), (5, 17482636), (10, 8741318), (20, 4370659), (31, 2819780), (62, 1409890), (124, 704945), (155, 563956), (310, 281978), (620, 140989)]