81257510

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{262121}}^1$

素因数の和:262159

約数の個数: 16

約数和(自身を含む): 150982272

約数和(自身を除く): 69724762

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 262121, 524242, 1310605, 2621210, 8125751, 16251502, 40628755, 81257510]

約数ペア:

[(1, 81257510), (2, 40628755), (5, 16251502), (10, 8125751), (31, 2621210), (62, 1310605), (155, 524242), (310, 262121)]