31890170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12911}}^1$

素因数の和:12950

約数の個数: 32

約数和(自身を含む): 65076480

約数和(自身を除く): 33186310

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 12911, 25822, 64555, 129110, 167843, 245309, 335686, 490618, 839215, 1226545, 1678430, 2453090, 3189017, 6378034, 15945085, 31890170]

約数ペア:

[(1, 31890170), (2, 15945085), (5, 6378034), (10, 3189017), (13, 2453090), (19, 1678430), (26, 1226545), (38, 839215), (65, 490618), (95, 335686), (130, 245309), (190, 167843), (247, 129110), (494, 64555), (1235, 25822), (2470, 12911)]