198609920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{38791}}^1$

素因数の和:38816

約数の個数: 44

約数和(自身を含む): 476443344

約数和(自身を除く): 277833424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 38791, 77582, 155164, 193955, 310328, 387910, 620656, 775820, 1241312, 1551640, 2482624, 3103280, 4965248, 6206560, 9930496, 12413120, 19860992, 24826240, 39721984, 49652480, 99304960, 198609920]

約数ペア:

[(1, 198609920), (2, 99304960), (4, 49652480), (5, 39721984), (8, 24826240), (10, 19860992), (16, 12413120), (20, 9930496), (32, 6206560), (40, 4965248), (64, 3103280), (80, 2482624), (128, 1551640), (160, 1241312), (256, 775820), (320, 620656), (512, 387910), (640, 310328), (1024, 193955), (1280, 155164), (2560, 77582), (5120, 38791)]