25422850

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:327

約数の個数: 48

約数和(自身を含む): 49717800

約数和(自身を除く): 24294950

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 89, 145, 178, 197, 290, 394, 445, 725, 890, 985, 1450, 1970, 2225, 2581, 4450, 4925, 5162, 5713, 9850, 11426, 12905, 17533, 25810, 28565, 35066, 57130, 64525, 87665, 129050, 142825, 175330, 285650, 438325, 508457, 876650, 1016914, 2542285, 5084570, 12711425, 25422850]

約数ペア:

[(1, 25422850), (2, 12711425), (5, 5084570), (10, 2542285), (25, 1016914), (29, 876650), (50, 508457), (58, 438325), (89, 285650), (145, 175330), (178, 142825), (197, 129050), (290, 87665), (394, 64525), (445, 57130), (725, 35066), (890, 28565), (985, 25810), (1450, 17533), (1970, 12905), (2225, 11426), (2581, 9850), (4450, 5713), (4925, 5162)]