3914120

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{1997}}^1$

素因数の和:2022

約数の個数: 48

約数和(自身を含む): 10249740

約数和(自身を除く): 6335620

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, 1997, 3994, 7988, 9985, 13979, 15976, 19970, 27958, 39940, 55916, 69895, 79880, 97853, 111832, 139790, 195706, 279580, 391412, 489265, 559160, 782824, 978530, 1957060, 3914120]

約数ペア:

[(1, 3914120), (2, 1957060), (4, 978530), (5, 782824), (7, 559160), (8, 489265), (10, 391412), (14, 279580), (20, 195706), (28, 139790), (35, 111832), (40, 97853), (49, 79880), (56, 69895), (70, 55916), (98, 39940), (140, 27958), (196, 19970), (245, 15976), (280, 13979), (392, 9985), (490, 7988), (980, 3994), (1960, 1997)]