207677820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{494471}}^1$

素因数の和:494490

約数の個数: 48

約数和(自身を含む): 664570368

約数和(自身を除く): 456892548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 494471, 988942, 1483413, 1977884, 2472355, 2966826, 3461297, 4944710, 5933652, 6922594, 7417065, 9889420, 10383891, 13845188, 14834130, 17306485, 20767782, 29668260, 34612970, 41535564, 51919455, 69225940, 103838910, 207677820]

約数ペア:

[(1, 207677820), (2, 103838910), (3, 69225940), (4, 51919455), (5, 41535564), (6, 34612970), (7, 29668260), (10, 20767782), (12, 17306485), (14, 14834130), (15, 13845188), (20, 10383891), (21, 9889420), (28, 7417065), (30, 6922594), (35, 5933652), (42, 4944710), (60, 3461297), (70, 2966826), (84, 2472355), (105, 1977884), (140, 1483413), (210, 988942), (420, 494471)]