20778826215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{159463}}^1$

素因数の和:159568

約数の個数: 64

約数和(自身を含む): 40781961216

約数和(自身を除く): 20003135001

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 73, 85, 105, 119, 219, 255, 357, 365, 511, 595, 1095, 1241, 1533, 1785, 2555, 3723, 6205, 7665, 8687, 18615, 26061, 43435, 130305, 159463, 478389, 797315, 1116241, 2391945, 2710871, 3348723, 5581205, 8132613, 11640799, 13554355, 16743615, 18976097, 34922397, 40663065, 56928291, 58203995, 81485593, 94880485, 174611985, 197893583, 244456779, 284641455, 407427965, 593680749, 989467915, 1222283895, 1385255081, 2968403745, 4155765243, 6926275405, 20778826215]

約数ペア:

[(1, 20778826215), (3, 6926275405), (5, 4155765243), (7, 2968403745), (15, 1385255081), (17, 1222283895), (21, 989467915), (35, 593680749), (51, 407427965), (73, 284641455), (85, 244456779), (105, 197893583), (119, 174611985), (219, 94880485), (255, 81485593), (357, 58203995), (365, 56928291), (511, 40663065), (595, 34922397), (1095, 18976097), (1241, 16743615), (1533, 13554355), (1785, 11640799), (2555, 8132613), (3723, 5581205), (6205, 3348723), (7665, 2710871), (8687, 2391945), (18615, 1116241), (26061, 797315), (43435, 478389), (130305, 159463)]