80935340

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 173759040

約数和(自身を除く): 92823700

約数列:

[1, 2, 4, 5, 10, 20, 101, 103, 202, 206, 389, 404, 412, 505, 515, 778, 1010, 1030, 1556, 1945, 2020, 2060, 3890, 7780, 10403, 20806, 39289, 40067, 41612, 52015, 78578, 80134, 104030, 157156, 160268, 196445, 200335, 208060, 392890, 400670, 785780, 801340, 4046767, 8093534, 16187068, 20233835, 40467670, 80935340]

約数ペア:

[(1, 80935340), (2, 40467670), (4, 20233835), (5, 16187068), (10, 8093534), (20, 4046767), (101, 801340), (103, 785780), (202, 400670), (206, 392890), (389, 208060), (404, 200335), (412, 196445), (505, 160268), (515, 157156), (778, 104030), (1010, 80134), (1030, 78578), (1556, 52015), (1945, 41612), (2020, 40067), (2060, 39289), (3890, 20806), (7780, 10403)]