920139780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{2190809}}^1$

素因数の和:2190828

約数の個数: 48

約数和(自身を含む): 2944448640

約数和(自身を除く): 2024308860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 2190809, 4381618, 6572427, 8763236, 10954045, 13144854, 15335663, 21908090, 26289708, 30671326, 32862135, 43816180, 46006989, 61342652, 65724270, 76678315, 92013978, 131448540, 153356630, 184027956, 230034945, 306713260, 460069890, 920139780]

約数ペア:

[(1, 920139780), (2, 460069890), (3, 306713260), (4, 230034945), (5, 184027956), (6, 153356630), (7, 131448540), (10, 92013978), (12, 76678315), (14, 65724270), (15, 61342652), (20, 46006989), (21, 43816180), (28, 32862135), (30, 30671326), (35, 26289708), (42, 21908090), (60, 15335663), (70, 13144854), (84, 10954045), (105, 8763236), (140, 6572427), (210, 4381618), (420, 2190809)]