1984280

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{439}}^1$

素因数の和:563

約数の個数: 32

約数和(自身を含む): 4514400

約数和(自身を除く): 2530120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 439, 452, 565, 878, 904, 1130, 1756, 2195, 2260, 3512, 4390, 4520, 8780, 17560, 49607, 99214, 198428, 248035, 396856, 496070, 992140, 1984280]

約数ペア:

[(1, 1984280), (2, 992140), (4, 496070), (5, 396856), (8, 248035), (10, 198428), (20, 99214), (40, 49607), (113, 17560), (226, 8780), (439, 4520), (452, 4390), (565, 3512), (878, 2260), (904, 2195), (1130, 1756)]