648380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1907}}^1$

素因数の和:1933

約数の個数: 24

約数和(自身を含む): 1442448

約数和(自身を除く): 794068

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1907, 3814, 7628, 9535, 19070, 32419, 38140, 64838, 129676, 162095, 324190, 648380]

約数ペア:

[(1, 648380), (2, 324190), (4, 162095), (5, 129676), (10, 64838), (17, 38140), (20, 32419), (34, 19070), (68, 9535), (85, 7628), (170, 3814), (340, 1907)]