1620680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1307}}^1$

素因数の和:1349

約数の個数: 32

約数和(自身を含む): 3767040

約数和(自身を除く): 2146360

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1307, 2614, 5228, 6535, 10456, 13070, 26140, 40517, 52280, 81034, 162068, 202585, 324136, 405170, 810340, 1620680]

約数ペア:

[(1, 1620680), (2, 810340), (4, 405170), (5, 324136), (8, 202585), (10, 162068), (20, 81034), (31, 52280), (40, 40517), (62, 26140), (124, 13070), (155, 10456), (248, 6535), (310, 5228), (620, 2614), (1240, 1307)]