199787320

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{28871}}^1$

素因数の和:29055

約数の個数: 32

約数和(自身を含む): 452135520

約数和(自身を除く): 252348200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 28871, 57742, 115484, 144355, 230968, 288710, 577420, 1154840, 4994683, 9989366, 19978732, 24973415, 39957464, 49946830, 99893660, 199787320]

約数ペア:

[(1, 199787320), (2, 99893660), (4, 49946830), (5, 39957464), (8, 24973415), (10, 19978732), (20, 9989366), (40, 4994683), (173, 1154840), (346, 577420), (692, 288710), (865, 230968), (1384, 144355), (1730, 115484), (3460, 57742), (6920, 28871)]