20119976

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{619}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 40176000

約数和(自身を除く): 20056024

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 239, 478, 619, 956, 1238, 1912, 2476, 4063, 4952, 8126, 10523, 16252, 21046, 32504, 42092, 84184, 147941, 295882, 591764, 1183528, 2514997, 5029994, 10059988, 20119976]

約数ペア:

[(1, 20119976), (2, 10059988), (4, 5029994), (8, 2514997), (17, 1183528), (34, 591764), (68, 295882), (136, 147941), (239, 84184), (478, 42092), (619, 32504), (956, 21046), (1238, 16252), (1912, 10523), (2476, 8126), (4063, 4952)]