20175897735

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{397829}}^1$

素因数の和:397877

約数の個数: 72

約数和(自身を含む): 42450052320

約数和(自身を除く): 22274154585

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 49, 63, 69, 105, 115, 147, 161, 207, 245, 315, 345, 441, 483, 735, 805, 1035, 1127, 1449, 2205, 2415, 3381, 5635, 7245, 10143, 16905, 50715, 397829, 1193487, 1989145, 2784803, 3580461, 5967435, 8354409, 9150067, 13924015, 17902305, 19493621, 25063227, 27450201, 41772045, 45750335, 58480863, 64050469, 82350603, 97468105, 125316135, 137251005, 175442589, 192151407, 292404315, 320252345, 411753015, 448353283, 576454221, 877212945, 960757035, 1345059849, 2241766415, 2882271105, 4035179547, 6725299245, 20175897735]

約数ペア:

[(1, 20175897735), (3, 6725299245), (5, 4035179547), (7, 2882271105), (9, 2241766415), (15, 1345059849), (21, 960757035), (23, 877212945), (35, 576454221), (45, 448353283), (49, 411753015), (63, 320252345), (69, 292404315), (105, 192151407), (115, 175442589), (147, 137251005), (161, 125316135), (207, 97468105), (245, 82350603), (315, 64050469), (345, 58480863), (441, 45750335), (483, 41772045), (735, 27450201), (805, 25063227), (1035, 19493621), (1127, 17902305), (1449, 13924015), (2205, 9150067), (2415, 8354409), (3381, 5967435), (5635, 3580461), (7245, 2784803), (10143, 1989145), (16905, 1193487), (50715, 397829)]