630778820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{9859}}^1$

素因数の和:10332

約数の個数: 48

約数和(自身を含む): 1517335680

約数和(自身を除く): 886556860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 457, 914, 1828, 2285, 3199, 4570, 6398, 9140, 9859, 12796, 15995, 19718, 31990, 39436, 49295, 63980, 69013, 98590, 138026, 197180, 276052, 345065, 690130, 1380260, 4505563, 9011126, 18022252, 22527815, 31538941, 45055630, 63077882, 90111260, 126155764, 157694705, 315389410, 630778820]

約数ペア:

[(1, 630778820), (2, 315389410), (4, 157694705), (5, 126155764), (7, 90111260), (10, 63077882), (14, 45055630), (20, 31538941), (28, 22527815), (35, 18022252), (70, 9011126), (140, 4505563), (457, 1380260), (914, 690130), (1828, 345065), (2285, 276052), (3199, 197180), (4570, 138026), (6398, 98590), (9140, 69013), (9859, 63980), (12796, 49295), (15995, 39436), (19718, 31990)]