51430925

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:127

約数の個数: 72

約数和(自身を含む): 82780416

約数和(自身を除く): 31349491

約数列:

[1, 5, 7, 13, 25, 35, 37, 47, 65, 91, 169, 175, 185, 235, 259, 325, 329, 455, 481, 611, 845, 925, 1175, 1183, 1295, 1645, 1739, 2275, 2405, 3055, 3367, 4225, 4277, 5915, 6253, 6475, 7943, 8225, 8695, 12025, 12173, 15275, 16835, 21385, 22607, 29575, 31265, 39715, 43475, 43771, 55601, 60865, 84175, 106925, 113035, 156325, 158249, 198575, 218855, 278005, 293891, 304325, 565175, 791245, 1094275, 1390025, 1469455, 2057237, 3956225, 7347275, 10286185, 51430925]

約数ペア:

[(1, 51430925), (5, 10286185), (7, 7347275), (13, 3956225), (25, 2057237), (35, 1469455), (37, 1390025), (47, 1094275), (65, 791245), (91, 565175), (169, 304325), (175, 293891), (185, 278005), (235, 218855), (259, 198575), (325, 158249), (329, 156325), (455, 113035), (481, 106925), (611, 84175), (845, 60865), (925, 55601), (1175, 43771), (1183, 43475), (1295, 39715), (1645, 31265), (1739, 29575), (2275, 22607), (2405, 21385), (3055, 16835), (3367, 15275), (4225, 12173), (4277, 12025), (5915, 8695), (6253, 8225), (6475, 7943)]