12783800

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{1559}}^1$

素因数の和:1616

約数の個数: 48

約数和(自身を含む): 30466800

約数和(自身を除く): 17683000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1559, 1640, 2050, 3118, 4100, 6236, 7795, 8200, 12472, 15590, 31180, 38975, 62360, 63919, 77950, 127838, 155900, 255676, 311800, 319595, 511352, 639190, 1278380, 1597975, 2556760, 3195950, 6391900, 12783800]

約数ペア:

[(1, 12783800), (2, 6391900), (4, 3195950), (5, 2556760), (8, 1597975), (10, 1278380), (20, 639190), (25, 511352), (40, 319595), (41, 311800), (50, 255676), (82, 155900), (100, 127838), (164, 77950), (200, 63919), (205, 62360), (328, 38975), (410, 31180), (820, 15590), (1025, 12472), (1559, 8200), (1640, 7795), (2050, 6236), (3118, 4100)]