157910020

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{60271}}^1$

素因数の和:60411

約数の個数: 24

約数和(自身を含む): 334147968

約数和(自身を除く): 176237948

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 60271, 120542, 241084, 301355, 602710, 1205420, 7895501, 15791002, 31582004, 39477505, 78955010, 157910020]

約数ペア:

[(1, 157910020), (2, 78955010), (4, 39477505), (5, 31582004), (10, 15791002), (20, 7895501), (131, 1205420), (262, 602710), (524, 301355), (655, 241084), (1310, 120542), (2620, 60271)]