12709385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 17781120

約数和(自身を除く): 5071735

約数列:

[1, 5, 13, 19, 41, 65, 95, 205, 247, 251, 533, 779, 1235, 1255, 2665, 3263, 3895, 4769, 10127, 10291, 16315, 23845, 50635, 51455, 61997, 133783, 195529, 309985, 668915, 977645, 2541877, 12709385]

約数ペア:

[(1, 12709385), (5, 2541877), (13, 977645), (19, 668915), (41, 309985), (65, 195529), (95, 133783), (205, 61997), (247, 51455), (251, 50635), (533, 23845), (779, 16315), (1235, 10291), (1255, 10127), (2665, 4769), (3263, 3895)]