808551460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{21067}}^1$

素因数の和:21196

約数の個数: 48

約数和(自身を含む): 1805106240

約数和(自身を除く): 996554780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 380, 404, 505, 1010, 1919, 2020, 3838, 7676, 9595, 19190, 21067, 38380, 42134, 84268, 105335, 210670, 400273, 421340, 800546, 1601092, 2001365, 2127767, 4002730, 4255534, 8005460, 8511068, 10638835, 21277670, 40427573, 42555340, 80855146, 161710292, 202137865, 404275730, 808551460]

約数ペア:

[(1, 808551460), (2, 404275730), (4, 202137865), (5, 161710292), (10, 80855146), (19, 42555340), (20, 40427573), (38, 21277670), (76, 10638835), (95, 8511068), (101, 8005460), (190, 4255534), (202, 4002730), (380, 2127767), (404, 2001365), (505, 1601092), (1010, 800546), (1919, 421340), (2020, 400273), (3838, 210670), (7676, 105335), (9595, 84268), (19190, 42134), (21067, 38380)]