13280780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 29072736

約数和(自身を除く): 15791956

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 131, 137, 148, 185, 262, 274, 370, 524, 548, 655, 685, 740, 1310, 1370, 2620, 2740, 4847, 5069, 9694, 10138, 17947, 19388, 20276, 24235, 25345, 35894, 48470, 50690, 71788, 89735, 96940, 101380, 179470, 358940, 664039, 1328078, 2656156, 3320195, 6640390, 13280780]

約数ペア:

[(1, 13280780), (2, 6640390), (4, 3320195), (5, 2656156), (10, 1328078), (20, 664039), (37, 358940), (74, 179470), (131, 101380), (137, 96940), (148, 89735), (185, 71788), (262, 50690), (274, 48470), (370, 35894), (524, 25345), (548, 24235), (655, 20276), (685, 19388), (740, 17947), (1310, 10138), (1370, 9694), (2620, 5069), (2740, 4847)]