81091030

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{2039}}^1$

素因数の和:2184

約数の個数: 32

約数和(自身を含む): 151139520

約数和(自身を除く): 70048490

約数列:

[1, 2, 5, 10, 41, 82, 97, 194, 205, 410, 485, 970, 2039, 3977, 4078, 7954, 10195, 19885, 20390, 39770, 83599, 167198, 197783, 395566, 417995, 835990, 988915, 1977830, 8109103, 16218206, 40545515, 81091030]

約数ペア:

[(1, 81091030), (2, 40545515), (5, 16218206), (10, 8109103), (41, 1977830), (82, 988915), (97, 835990), (194, 417995), (205, 395566), (410, 197783), (485, 167198), (970, 83599), (2039, 39770), (3977, 20390), (4078, 19885), (7954, 10195)]