66488980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{9209}}^1$

素因数の和:9256

約数の個数: 36

約数和(自身を含む): 147378420

約数和(自身を除く): 80889440

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 9209, 18418, 36836, 46045, 92090, 174971, 184180, 349942, 699884, 874855, 1749710, 3324449, 3499420, 6648898, 13297796, 16622245, 33244490, 66488980]

約数ペア:

[(1, 66488980), (2, 33244490), (4, 16622245), (5, 13297796), (10, 6648898), (19, 3499420), (20, 3324449), (38, 1749710), (76, 874855), (95, 699884), (190, 349942), (361, 184180), (380, 174971), (722, 92090), (1444, 46045), (1805, 36836), (3610, 18418), (7220, 9209)]