12887775

素因数分解:

$3^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{313}}^1$

素因数の和:393

約数の個数: 48

約数和(自身を含む): 24140320

約数和(自身を除く): 11252545

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 61, 75, 135, 183, 225, 305, 313, 549, 675, 915, 939, 1525, 1565, 1647, 2745, 2817, 4575, 4695, 7825, 8235, 8451, 13725, 14085, 19093, 23475, 41175, 42255, 57279, 70425, 95465, 171837, 211275, 286395, 477325, 515511, 859185, 1431975, 2577555, 4295925, 12887775]

約数ペア:

[(1, 12887775), (3, 4295925), (5, 2577555), (9, 1431975), (15, 859185), (25, 515511), (27, 477325), (45, 286395), (61, 211275), (75, 171837), (135, 95465), (183, 70425), (225, 57279), (305, 42255), (313, 41175), (549, 23475), (675, 19093), (915, 14085), (939, 13725), (1525, 8451), (1565, 8235), (1647, 7825), (2745, 4695), (2817, 4575)]