278328988

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{1667}}^1$

素因数の和:1834

約数の個数: 48

約数和(自身を含む): 571656960

約数和(自身を除く): 293327972

約数列:

[1, 2, 4, 7, 14, 28, 67, 89, 134, 178, 268, 356, 469, 623, 938, 1246, 1667, 1876, 2492, 3334, 5963, 6668, 11669, 11926, 23338, 23852, 41741, 46676, 83482, 111689, 148363, 166964, 223378, 296726, 446756, 593452, 781823, 1038541, 1563646, 2077082, 3127292, 4154164, 9940321, 19880642, 39761284, 69582247, 139164494, 278328988]

約数ペア:

[(1, 278328988), (2, 139164494), (4, 69582247), (7, 39761284), (14, 19880642), (28, 9940321), (67, 4154164), (89, 3127292), (134, 2077082), (178, 1563646), (268, 1038541), (356, 781823), (469, 593452), (623, 446756), (938, 296726), (1246, 223378), (1667, 166964), (1876, 148363), (2492, 111689), (3334, 83482), (5963, 46676), (6668, 41741), (11669, 23852), (11926, 23338)]