20139075

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:209

約数の個数: 72

約数和(自身を含む): 40235520

約数和(自身を除く): 20096445

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 79, 99, 103, 165, 225, 237, 275, 309, 395, 495, 515, 711, 825, 869, 927, 1133, 1185, 1545, 1975, 2475, 2575, 2607, 3399, 3555, 4345, 4635, 5665, 5925, 7725, 7821, 8137, 10197, 13035, 16995, 17775, 21725, 23175, 24411, 28325, 39105, 40685, 50985, 65175, 73233, 84975, 89507, 122055, 195525, 203425, 254925, 268521, 366165, 447535, 610275, 805563, 1342605, 1830825, 2237675, 4027815, 6713025, 20139075]

約数ペア:

[(1, 20139075), (3, 6713025), (5, 4027815), (9, 2237675), (11, 1830825), (15, 1342605), (25, 805563), (33, 610275), (45, 447535), (55, 366165), (75, 268521), (79, 254925), (99, 203425), (103, 195525), (165, 122055), (225, 89507), (237, 84975), (275, 73233), (309, 65175), (395, 50985), (495, 40685), (515, 39105), (711, 28325), (825, 24411), (869, 23175), (927, 21725), (1133, 17775), (1185, 16995), (1545, 13035), (1975, 10197), (2475, 8137), (2575, 7821), (2607, 7725), (3399, 5925), (3555, 5665), (4345, 4635)]