1390136260

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{507349}}^1$

素因数の和:507495

約数の個数: 24

約数和(自身を含む): 2940600600

約数和(自身を除く): 1550464340

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 507349, 1014698, 2029396, 2536745, 5073490, 10146980, 69506813, 139013626, 278027252, 347534065, 695068130, 1390136260]

約数ペア:

[(1, 1390136260), (2, 695068130), (4, 347534065), (5, 278027252), (10, 139013626), (20, 69506813), (137, 10146980), (274, 5073490), (548, 2536745), (685, 2029396), (1370, 1014698), (2740, 507349)]