28123515

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 60702720

約数和(自身を除く): 32579205

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 37, 45, 57, 63, 95, 105, 111, 127, 133, 171, 185, 259, 285, 315, 333, 381, 399, 555, 635, 665, 703, 777, 855, 889, 1143, 1197, 1295, 1665, 1905, 1995, 2109, 2331, 2413, 2667, 3515, 3885, 4445, 4699, 4921, 5715, 5985, 6327, 7239, 8001, 10545, 11655, 12065, 13335, 14097, 14763, 16891, 21717, 23495, 24605, 31635, 32893, 36195, 40005, 42291, 44289, 50673, 70485, 73815, 84455, 89281, 98679, 108585, 152019, 164465, 211455, 221445, 253365, 267843, 296037, 446405, 493395, 624967, 760095, 803529, 1339215, 1480185, 1874901, 3124835, 4017645, 5624703, 9374505, 28123515]

約数ペア:

[(1, 28123515), (3, 9374505), (5, 5624703), (7, 4017645), (9, 3124835), (15, 1874901), (19, 1480185), (21, 1339215), (35, 803529), (37, 760095), (45, 624967), (57, 493395), (63, 446405), (95, 296037), (105, 267843), (111, 253365), (127, 221445), (133, 211455), (171, 164465), (185, 152019), (259, 108585), (285, 98679), (315, 89281), (333, 84455), (381, 73815), (399, 70485), (555, 50673), (635, 44289), (665, 42291), (703, 40005), (777, 36195), (855, 32893), (889, 31635), (1143, 24605), (1197, 23495), (1295, 21717), (1665, 16891), (1905, 14763), (1995, 14097), (2109, 13335), (2331, 12065), (2413, 11655), (2667, 10545), (3515, 8001), (3885, 7239), (4445, 6327), (4699, 5985), (4921, 5715)]