71112220

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{919}}^1$

素因数の和:1054

約数の個数: 48

約数和(自身を含む): 154405440

約数和(自身を除く): 83293220

約数列:

[1, 2, 4, 5, 10, 20, 53, 73, 106, 146, 212, 265, 292, 365, 530, 730, 919, 1060, 1460, 1838, 3676, 3869, 4595, 7738, 9190, 15476, 18380, 19345, 38690, 48707, 67087, 77380, 97414, 134174, 194828, 243535, 268348, 335435, 487070, 670870, 974140, 1341740, 3555611, 7111222, 14222444, 17778055, 35556110, 71112220]

約数ペア:

[(1, 71112220), (2, 35556110), (4, 17778055), (5, 14222444), (10, 7111222), (20, 3555611), (53, 1341740), (73, 974140), (106, 670870), (146, 487070), (212, 335435), (265, 268348), (292, 243535), (365, 194828), (530, 134174), (730, 97414), (919, 77380), (1060, 67087), (1460, 48707), (1838, 38690), (3676, 19345), (3869, 18380), (4595, 15476), (7738, 9190)]