27515920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8389}}^1$

素因数の和:8443

約数の個数: 40

約数和(自身を含む): 65542680

約数和(自身を除く): 38026760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 8389, 16778, 33556, 41945, 67112, 83890, 134224, 167780, 335560, 343949, 671120, 687898, 1375796, 1719745, 2751592, 3439490, 5503184, 6878980, 13757960, 27515920]

約数ペア:

[(1, 27515920), (2, 13757960), (4, 6878980), (5, 5503184), (8, 3439490), (10, 2751592), (16, 1719745), (20, 1375796), (40, 687898), (41, 671120), (80, 343949), (82, 335560), (164, 167780), (205, 134224), (328, 83890), (410, 67112), (656, 41945), (820, 33556), (1640, 16778), (3280, 8389)]