199945780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{1721}}^1$

素因数の和:1924

約数の個数: 48

約数和(自身を含む): 434233296

約数和(自身を除く): 234287516

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 157, 185, 314, 370, 628, 740, 785, 1570, 1721, 3140, 3442, 5809, 6884, 8605, 11618, 17210, 23236, 29045, 34420, 58090, 63677, 116180, 127354, 254708, 270197, 318385, 540394, 636770, 1080788, 1273540, 1350985, 2701970, 5403940, 9997289, 19994578, 39989156, 49986445, 99972890, 199945780]

約数ペア:

[(1, 199945780), (2, 99972890), (4, 49986445), (5, 39989156), (10, 19994578), (20, 9997289), (37, 5403940), (74, 2701970), (148, 1350985), (157, 1273540), (185, 1080788), (314, 636770), (370, 540394), (628, 318385), (740, 270197), (785, 254708), (1570, 127354), (1721, 116180), (3140, 63677), (3442, 58090), (5809, 34420), (6884, 29045), (8605, 23236), (11618, 17210)]