997580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1609}}^1$

素因数の和:1649

約数の個数: 24

約数和(自身を含む): 2163840

約数和(自身を除く): 1166260

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 1609, 3218, 6436, 8045, 16090, 32180, 49879, 99758, 199516, 249395, 498790, 997580]

約数ペア:

[(1, 997580), (2, 498790), (4, 249395), (5, 199516), (10, 99758), (20, 49879), (31, 32180), (62, 16090), (124, 8045), (155, 6436), (310, 3218), (620, 1609)]