109900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{157}}^1$

素因数の和:178

約数の個数: 36

約数和(自身を含む): 274288

約数和(自身を除く): 164388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 157, 175, 314, 350, 628, 700, 785, 1099, 1570, 2198, 3140, 3925, 4396, 5495, 7850, 10990, 15700, 21980, 27475, 54950, 109900]

約数ペア:

[(1, 109900), (2, 54950), (4, 27475), (5, 21980), (7, 15700), (10, 10990), (14, 7850), (20, 5495), (25, 4396), (28, 3925), (35, 3140), (50, 2198), (70, 1570), (100, 1099), (140, 785), (157, 700), (175, 628), (314, 350)]