68996440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{42071}}^1$

素因数の和:42123

約数の個数: 32

約数和(自身を含む): 159032160

約数和(自身を除く): 90035720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 42071, 84142, 168284, 210355, 336568, 420710, 841420, 1682840, 1724911, 3449822, 6899644, 8624555, 13799288, 17249110, 34498220, 68996440]

約数ペア:

[(1, 68996440), (2, 34498220), (4, 17249110), (5, 13799288), (8, 8624555), (10, 6899644), (20, 3449822), (40, 1724911), (41, 1682840), (82, 841420), (164, 420710), (205, 336568), (328, 210355), (410, 168284), (820, 84142), (1640, 42071)]