20173492815

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{383}}^1\times {\mathrm{71663}}^1$

素因数の和:72068

約数の個数: 48

約数和(自身を含む): 37645959168

約数和(自身を除く): 17472466353

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 383, 735, 1149, 1915, 2681, 5745, 8043, 13405, 18767, 40215, 56301, 71663, 93835, 214989, 281505, 358315, 501641, 1074945, 1504923, 2508205, 3511487, 7524615, 10534461, 17557435, 27446929, 52672305, 82340787, 137234645, 192128503, 411703935, 576385509, 960642515, 1344899521, 2881927545, 4034698563, 6724497605, 20173492815]

約数ペア:

[(1, 20173492815), (3, 6724497605), (5, 4034698563), (7, 2881927545), (15, 1344899521), (21, 960642515), (35, 576385509), (49, 411703935), (105, 192128503), (147, 137234645), (245, 82340787), (383, 52672305), (735, 27446929), (1149, 17557435), (1915, 10534461), (2681, 7524615), (5745, 3511487), (8043, 2508205), (13405, 1504923), (18767, 1074945), (40215, 501641), (56301, 358315), (71663, 281505), (93835, 214989)]