15742575

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 30382976

約数和(自身を除く): 14640401

約数列:

[1, 3, 5, 9, 15, 25, 31, 37, 45, 61, 75, 93, 111, 155, 183, 185, 225, 279, 305, 333, 465, 549, 555, 775, 915, 925, 1147, 1395, 1525, 1665, 1891, 2257, 2325, 2745, 2775, 3441, 4575, 5673, 5735, 6771, 6975, 8325, 9455, 10323, 11285, 13725, 17019, 17205, 20313, 28365, 28675, 33855, 47275, 51615, 56425, 69967, 85095, 86025, 101565, 141825, 169275, 209901, 258075, 349835, 425475, 507825, 629703, 1049505, 1749175, 3148515, 5247525, 15742575]

約数ペア:

[(1, 15742575), (3, 5247525), (5, 3148515), (9, 1749175), (15, 1049505), (25, 629703), (31, 507825), (37, 425475), (45, 349835), (61, 258075), (75, 209901), (93, 169275), (111, 141825), (155, 101565), (183, 86025), (185, 85095), (225, 69967), (279, 56425), (305, 51615), (333, 47275), (465, 33855), (549, 28675), (555, 28365), (775, 20313), (915, 17205), (925, 17019), (1147, 13725), (1395, 11285), (1525, 10323), (1665, 9455), (1891, 8325), (2257, 6975), (2325, 6771), (2745, 5735), (2775, 5673), (3441, 4575)]