20406411075

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{827}}^1\times {\mathrm{10613}}^1$

素因数の和:11484

約数の個数: 48

約数和(自身を含む): 34872339456

約数和(自身を除く): 14465928381

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 465, 775, 827, 2325, 2481, 4135, 10613, 12405, 20675, 25637, 31839, 53065, 62025, 76911, 128185, 159195, 265325, 329003, 384555, 640925, 795975, 987009, 1645015, 1922775, 4935045, 8225075, 8776951, 24675225, 26330853, 43884755, 131654265, 219423775, 272085481, 658271325, 816256443, 1360427405, 4081282215, 6802137025, 20406411075]

約数ペア:

[(1, 20406411075), (3, 6802137025), (5, 4081282215), (15, 1360427405), (25, 816256443), (31, 658271325), (75, 272085481), (93, 219423775), (155, 131654265), (465, 43884755), (775, 26330853), (827, 24675225), (2325, 8776951), (2481, 8225075), (4135, 4935045), (10613, 1922775), (12405, 1645015), (20675, 987009), (25637, 795975), (31839, 640925), (53065, 384555), (62025, 329003), (76911, 265325), (128185, 159195)]