20417312

素因数分解:

$2^5\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:273

約数の個数: 48

約数和(自身を含む): 41640480

約数和(自身を除く): 21223168

約数列:

[1, 2, 4, 8, 16, 32, 67, 89, 107, 134, 178, 214, 268, 356, 428, 536, 712, 856, 1072, 1424, 1712, 2144, 2848, 3424, 5963, 7169, 9523, 11926, 14338, 19046, 23852, 28676, 38092, 47704, 57352, 76184, 95408, 114704, 152368, 190816, 229408, 304736, 638041, 1276082, 2552164, 5104328, 10208656, 20417312]

約数ペア:

[(1, 20417312), (2, 10208656), (4, 5104328), (8, 2552164), (16, 1276082), (32, 638041), (67, 304736), (89, 229408), (107, 190816), (134, 152368), (178, 114704), (214, 95408), (268, 76184), (356, 57352), (428, 47704), (536, 38092), (712, 28676), (856, 23852), (1072, 19046), (1424, 14338), (1712, 11926), (2144, 9523), (2848, 7169), (3424, 5963)]