20877588

素因数分解:

$2^2\times 3^5\times {\mathrm{47}}^1\times {\mathrm{457}}^1$

素因数の和:523

約数の個数: 72

約数和(自身を含む): 56015232

約数和(自身を除く): 35137644

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 47, 54, 81, 94, 108, 141, 162, 188, 243, 282, 324, 423, 457, 486, 564, 846, 914, 972, 1269, 1371, 1692, 1828, 2538, 2742, 3807, 4113, 5076, 5484, 7614, 8226, 11421, 12339, 15228, 16452, 21479, 22842, 24678, 37017, 42958, 45684, 49356, 64437, 74034, 85916, 111051, 128874, 148068, 193311, 222102, 257748, 386622, 444204, 579933, 773244, 1159866, 1739799, 2319732, 3479598, 5219397, 6959196, 10438794, 20877588]

約数ペア:

[(1, 20877588), (2, 10438794), (3, 6959196), (4, 5219397), (6, 3479598), (9, 2319732), (12, 1739799), (18, 1159866), (27, 773244), (36, 579933), (47, 444204), (54, 386622), (81, 257748), (94, 222102), (108, 193311), (141, 148068), (162, 128874), (188, 111051), (243, 85916), (282, 74034), (324, 64437), (423, 49356), (457, 45684), (486, 42958), (564, 37017), (846, 24678), (914, 22842), (972, 21479), (1269, 16452), (1371, 15228), (1692, 12339), (1828, 11421), (2538, 8226), (2742, 7614), (3807, 5484), (4113, 5076)]