31487690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{10531}}^1$

素因数の和:10574

約数の個数: 32

約数和(自身を含む): 63697536

約数和(自身を除く): 32209846

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 10531, 21062, 52655, 105310, 136903, 242213, 273806, 484426, 684515, 1211065, 1369030, 2422130, 3148769, 6297538, 15743845, 31487690]

約数ペア:

[(1, 31487690), (2, 15743845), (5, 6297538), (10, 3148769), (13, 2422130), (23, 1369030), (26, 1211065), (46, 684515), (65, 484426), (115, 273806), (130, 242213), (230, 136903), (299, 105310), (598, 52655), (1495, 21062), (2990, 10531)]