20054968

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{617}}^1$

素因数の和:879

約数の個数: 32

約数和(自身を含む): 40046400

約数和(自身を除く): 19991432

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 239, 478, 617, 956, 1234, 1912, 2468, 4063, 4936, 8126, 10489, 16252, 20978, 32504, 41956, 83912, 147463, 294926, 589852, 1179704, 2506871, 5013742, 10027484, 20054968]

約数ペア:

[(1, 20054968), (2, 10027484), (4, 5013742), (8, 2506871), (17, 1179704), (34, 589852), (68, 294926), (136, 147463), (239, 83912), (478, 41956), (617, 32504), (956, 20978), (1234, 16252), (1912, 10489), (2468, 8126), (4063, 4936)]