20879730

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2297}}^1$

素因数の和:2411

約数の個数: 48

約数和(自身を含む): 54848664

約数和(自身を除く): 33968934

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 101, 202, 303, 505, 606, 909, 1010, 1515, 1818, 2297, 3030, 4545, 4594, 6891, 9090, 11485, 13782, 20673, 22970, 34455, 41346, 68910, 103365, 206730, 231997, 463994, 695991, 1159985, 1391982, 2087973, 2319970, 3479955, 4175946, 6959910, 10439865, 20879730]

約数ペア:

[(1, 20879730), (2, 10439865), (3, 6959910), (5, 4175946), (6, 3479955), (9, 2319970), (10, 2087973), (15, 1391982), (18, 1159985), (30, 695991), (45, 463994), (90, 231997), (101, 206730), (202, 103365), (303, 68910), (505, 41346), (606, 34455), (909, 22970), (1010, 20673), (1515, 13782), (1818, 11485), (2297, 9090), (3030, 6891), (4545, 4594)]