20192560

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1459}}^1$

素因数の和:1645

約数の個数: 40

約数和(自身を含む): 47251440

約数和(自身を除く): 27058880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1459, 1730, 2768, 2918, 3460, 5836, 6920, 7295, 11672, 13840, 14590, 23344, 29180, 58360, 116720, 252407, 504814, 1009628, 1262035, 2019256, 2524070, 4038512, 5048140, 10096280, 20192560]

約数ペア:

[(1, 20192560), (2, 10096280), (4, 5048140), (5, 4038512), (8, 2524070), (10, 2019256), (16, 1262035), (20, 1009628), (40, 504814), (80, 252407), (173, 116720), (346, 58360), (692, 29180), (865, 23344), (1384, 14590), (1459, 13840), (1730, 11672), (2768, 7295), (2918, 6920), (3460, 5836)]