20204568

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^2\times {\mathrm{971}}^1$

素因数の和:1017

約数の個数: 72

約数和(自身を含む): 58188780

約数和(自身を除く): 37984212

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 68, 72, 102, 136, 153, 204, 289, 306, 408, 578, 612, 867, 971, 1156, 1224, 1734, 1942, 2312, 2601, 2913, 3468, 3884, 5202, 5826, 6936, 7768, 8739, 10404, 11652, 16507, 17478, 20808, 23304, 33014, 34956, 49521, 66028, 69912, 99042, 132056, 148563, 198084, 280619, 297126, 396168, 561238, 594252, 841857, 1122476, 1188504, 1683714, 2244952, 2525571, 3367428, 5051142, 6734856, 10102284, 20204568]

約数ペア:

[(1, 20204568), (2, 10102284), (3, 6734856), (4, 5051142), (6, 3367428), (8, 2525571), (9, 2244952), (12, 1683714), (17, 1188504), (18, 1122476), (24, 841857), (34, 594252), (36, 561238), (51, 396168), (68, 297126), (72, 280619), (102, 198084), (136, 148563), (153, 132056), (204, 99042), (289, 69912), (306, 66028), (408, 49521), (578, 34956), (612, 33014), (867, 23304), (971, 20808), (1156, 17478), (1224, 16507), (1734, 11652), (1942, 10404), (2312, 8739), (2601, 7768), (2913, 6936), (3468, 5826), (3884, 5202)]