28817425

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 16179695

約数列:

[1, 5, 7, 13, 25, 35, 53, 65, 91, 175, 239, 265, 325, 371, 455, 689, 1195, 1325, 1673, 1855, 2275, 3107, 3445, 4823, 5975, 8365, 9275, 12667, 15535, 17225, 21749, 24115, 41825, 63335, 77675, 88669, 108745, 120575, 164671, 316675, 443345, 543725, 823355, 1152697, 2216725, 4116775, 5763485, 28817425]

約数ペア:

[(1, 28817425), (5, 5763485), (7, 4116775), (13, 2216725), (25, 1152697), (35, 823355), (53, 543725), (65, 443345), (91, 316675), (175, 164671), (239, 120575), (265, 108745), (325, 88669), (371, 77675), (455, 63335), (689, 41825), (1195, 24115), (1325, 21749), (1673, 17225), (1855, 15535), (2275, 12667), (3107, 9275), (3445, 8365), (4823, 5975)]