78822770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19559}}^1$

素因数の和:19610

約数の個数: 32

約数和(自身を含む): 157731840

約数和(自身を除く): 78909070

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 19559, 39118, 97795, 195590, 254267, 508534, 606329, 1212658, 1271335, 2542670, 3031645, 6063290, 7882277, 15764554, 39411385, 78822770]

約数ペア:

[(1, 78822770), (2, 39411385), (5, 15764554), (10, 7882277), (13, 6063290), (26, 3031645), (31, 2542670), (62, 1271335), (65, 1212658), (130, 606329), (155, 508534), (310, 254267), (403, 195590), (806, 97795), (2015, 39118), (4030, 19559)]