28418475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{719}}^1$

素因数の和:780

約数の個数: 48

約数和(自身を含む): 51425280

約数和(自身を除く): 23006805

約数列:

[1, 3, 5, 15, 17, 25, 31, 51, 75, 85, 93, 155, 255, 425, 465, 527, 719, 775, 1275, 1581, 2157, 2325, 2635, 3595, 7905, 10785, 12223, 13175, 17975, 22289, 36669, 39525, 53925, 61115, 66867, 111445, 183345, 305575, 334335, 378913, 557225, 916725, 1136739, 1671675, 1894565, 5683695, 9472825, 28418475]

約数ペア:

[(1, 28418475), (3, 9472825), (5, 5683695), (15, 1894565), (17, 1671675), (25, 1136739), (31, 916725), (51, 557225), (75, 378913), (85, 334335), (93, 305575), (155, 183345), (255, 111445), (425, 66867), (465, 61115), (527, 53925), (719, 39525), (775, 36669), (1275, 22289), (1581, 17975), (2157, 13175), (2325, 12223), (2635, 10785), (3595, 7905)]