690505140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{885263}}^1$

素因数の和:885288

約数の個数: 48

約数和(自身を含む): 2082140928

約数和(自身を除く): 1391635788

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 885263, 1770526, 2655789, 3541052, 4426315, 5311578, 8852630, 10623156, 11508419, 13278945, 17705260, 23016838, 26557890, 34525257, 46033676, 53115780, 57542095, 69050514, 115084190, 138101028, 172626285, 230168380, 345252570, 690505140]

約数ペア:

[(1, 690505140), (2, 345252570), (3, 230168380), (4, 172626285), (5, 138101028), (6, 115084190), (10, 69050514), (12, 57542095), (13, 53115780), (15, 46033676), (20, 34525257), (26, 26557890), (30, 23016838), (39, 17705260), (52, 13278945), (60, 11508419), (65, 10623156), (78, 8852630), (130, 5311578), (156, 4426315), (195, 3541052), (260, 2655789), (390, 1770526), (780, 885263)]