20869100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{4259}}^1$

素因数の和:4287

約数の個数: 54

約数和(自身を含む): 52691940

約数和(自身を除く): 31822840

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4259, 4900, 8518, 17036, 21295, 29813, 42590, 59626, 85180, 106475, 119252, 149065, 208691, 212950, 298130, 417382, 425900, 596260, 745325, 834764, 1043455, 1490650, 2086910, 2981300, 4173820, 5217275, 10434550, 20869100]

約数ペア:

[(1, 20869100), (2, 10434550), (4, 5217275), (5, 4173820), (7, 2981300), (10, 2086910), (14, 1490650), (20, 1043455), (25, 834764), (28, 745325), (35, 596260), (49, 425900), (50, 417382), (70, 298130), (98, 212950), (100, 208691), (140, 149065), (175, 119252), (196, 106475), (245, 85180), (350, 59626), (490, 42590), (700, 29813), (980, 21295), (1225, 17036), (2450, 8518), (4259, 4900)]