257647407550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{28663}}^1\times {\mathrm{13829}}^1$

素因数の和:42517

約数の個数: 48

約数和(自身を含む): 516142902240

約数和(自身を除く): 258495494690

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 13829, 27658, 28663, 57326, 69145, 138290, 143315, 179777, 286630, 345725, 359554, 372619, 691450, 716575, 745238, 898885, 1433150, 1797770, 1863095, 3726190, 4494425, 8988850, 9315475, 18630950, 396380627, 792761254, 1981903135, 3963806270, 5152948151, 9909515675, 10305896302, 19819031350, 25764740755, 51529481510, 128823703775, 257647407550]

約数ペア:

[(1, 257647407550), (2, 128823703775), (5, 51529481510), (10, 25764740755), (13, 19819031350), (25, 10305896302), (26, 9909515675), (50, 5152948151), (65, 3963806270), (130, 1981903135), (325, 792761254), (650, 396380627), (13829, 18630950), (27658, 9315475), (28663, 8988850), (57326, 4494425), (69145, 3726190), (138290, 1863095), (143315, 1797770), (179777, 1433150), (286630, 898885), (345725, 745238), (359554, 716575), (372619, 691450)]