20124939728

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{509}}^1\times {\mathrm{145361}}^1$

素因数の和:145895

約数の個数: 40

約数和(自身を含む): 41367117960

約数和(自身を除く): 21242178232

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 509, 1018, 2036, 4072, 8144, 8653, 17306, 34612, 69224, 138448, 145361, 290722, 581444, 1162888, 2325776, 2471137, 4942274, 9884548, 19769096, 39538192, 73988749, 147977498, 295954996, 591909992, 1183819984, 1257808733, 2515617466, 5031234932, 10062469864, 20124939728]

約数ペア:

[(1, 20124939728), (2, 10062469864), (4, 5031234932), (8, 2515617466), (16, 1257808733), (17, 1183819984), (34, 591909992), (68, 295954996), (136, 147977498), (272, 73988749), (509, 39538192), (1018, 19769096), (2036, 9884548), (4072, 4942274), (8144, 2471137), (8653, 2325776), (17306, 1162888), (34612, 581444), (69224, 290722), (138448, 145361)]