31201240

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{15919}}^1$

素因数の和:15944

約数の個数: 48

約数和(自身を含む): 81669600

約数和(自身を除く): 50468360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 15919, 31838, 63676, 79595, 111433, 127352, 159190, 222866, 318380, 445732, 557165, 636760, 780031, 891464, 1114330, 1560062, 2228660, 3120124, 3900155, 4457320, 6240248, 7800310, 15600620, 31201240]

約数ペア:

[(1, 31201240), (2, 15600620), (4, 7800310), (5, 6240248), (7, 4457320), (8, 3900155), (10, 3120124), (14, 2228660), (20, 1560062), (28, 1114330), (35, 891464), (40, 780031), (49, 636760), (56, 557165), (70, 445732), (98, 318380), (140, 222866), (196, 159190), (245, 127352), (280, 111433), (392, 79595), (490, 63676), (980, 31838), (1960, 15919)]