42005015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{28097}}^1$

素因数の和:28138

約数の個数: 16

約数和(自身を含む): 56645568

約数和(自身を除く): 14640553

約数列:

[1, 5, 13, 23, 65, 115, 299, 1495, 28097, 140485, 365261, 646231, 1826305, 3231155, 8401003, 42005015]

約数ペア:

[(1, 42005015), (5, 8401003), (13, 3231155), (23, 1826305), (65, 646231), (115, 365261), (299, 140485), (1495, 28097)]