28762575

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 49996800

約数和(自身を除く): 21234225

約数列:

[1, 3, 5, 15, 25, 31, 75, 89, 93, 139, 155, 267, 417, 445, 465, 695, 775, 1335, 2085, 2225, 2325, 2759, 3475, 4309, 6675, 8277, 10425, 12371, 12927, 13795, 21545, 37113, 41385, 61855, 64635, 68975, 107725, 185565, 206925, 309275, 323175, 383501, 927825, 1150503, 1917505, 5752515, 9587525, 28762575]

約数ペア:

[(1, 28762575), (3, 9587525), (5, 5752515), (15, 1917505), (25, 1150503), (31, 927825), (75, 383501), (89, 323175), (93, 309275), (139, 206925), (155, 185565), (267, 107725), (417, 68975), (445, 64635), (465, 61855), (695, 41385), (775, 37113), (1335, 21545), (2085, 13795), (2225, 12927), (2325, 12371), (2759, 10425), (3475, 8277), (4309, 6675)]