20456166860

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1\times {\mathrm{31337}}^1$

素因数の和:31730

約数の個数: 48

約数和(自身を含む): 43466056704

約数和(自身を除く): 23009889844

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 257, 508, 514, 635, 1028, 1270, 1285, 2540, 2570, 5140, 31337, 32639, 62674, 65278, 125348, 130556, 156685, 163195, 313370, 326390, 626740, 652780, 3979799, 7959598, 8053609, 15919196, 16107218, 19898995, 32214436, 39797990, 40268045, 79595980, 80536090, 161072180, 1022808343, 2045616686, 4091233372, 5114041715, 10228083430, 20456166860]

約数ペア:

[(1, 20456166860), (2, 10228083430), (4, 5114041715), (5, 4091233372), (10, 2045616686), (20, 1022808343), (127, 161072180), (254, 80536090), (257, 79595980), (508, 40268045), (514, 39797990), (635, 32214436), (1028, 19898995), (1270, 16107218), (1285, 15919196), (2540, 8053609), (2570, 7959598), (5140, 3979799), (31337, 652780), (32639, 626740), (62674, 326390), (65278, 313370), (125348, 163195), (130556, 156685)]