86990440

素因数分解:

$2^3\times 5^1\times {\mathrm{743}}^1\times {\mathrm{2927}}^1$

素因数の和:3681

約数の個数: 32

約数和(自身を含む): 196058880

約数和(自身を除く): 109068440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 743, 1486, 2927, 2972, 3715, 5854, 5944, 7430, 11708, 14635, 14860, 23416, 29270, 29720, 58540, 117080, 2174761, 4349522, 8699044, 10873805, 17398088, 21747610, 43495220, 86990440]

約数ペア:

[(1, 86990440), (2, 43495220), (4, 21747610), (5, 17398088), (8, 10873805), (10, 8699044), (20, 4349522), (40, 2174761), (743, 117080), (1486, 58540), (2927, 29720), (2972, 29270), (3715, 23416), (5854, 14860), (5944, 14635), (7430, 11708)]