257565516

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{3727}}^1$

素因数の和:4190

約数の個数: 48

約数和(自身を含む): 648850944

約数和(自身を除く): 391285428

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 443, 886, 1329, 1772, 2658, 3727, 5316, 5759, 7454, 11181, 11518, 14908, 17277, 22362, 23036, 34554, 44724, 48451, 69108, 96902, 145353, 193804, 290706, 581412, 1651061, 3302122, 4953183, 6604244, 9906366, 19812732, 21463793, 42927586, 64391379, 85855172, 128782758, 257565516]

約数ペア:

[(1, 257565516), (2, 128782758), (3, 85855172), (4, 64391379), (6, 42927586), (12, 21463793), (13, 19812732), (26, 9906366), (39, 6604244), (52, 4953183), (78, 3302122), (156, 1651061), (443, 581412), (886, 290706), (1329, 193804), (1772, 145353), (2658, 96902), (3727, 69108), (5316, 48451), (5759, 44724), (7454, 34554), (11181, 23036), (11518, 22362), (14908, 17277)]