20724560

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8933}}^1$

素因数の和:8975

約数の個数: 40

約数和(自身を含む): 49851720

約数和(自身を除く): 29127160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 8933, 17866, 35732, 44665, 71464, 89330, 142928, 178660, 259057, 357320, 518114, 714640, 1036228, 1295285, 2072456, 2590570, 4144912, 5181140, 10362280, 20724560]

約数ペア:

[(1, 20724560), (2, 10362280), (4, 5181140), (5, 4144912), (8, 2590570), (10, 2072456), (16, 1295285), (20, 1036228), (29, 714640), (40, 518114), (58, 357320), (80, 259057), (116, 178660), (145, 142928), (232, 89330), (290, 71464), (464, 44665), (580, 35732), (1160, 17866), (2320, 8933)]