2819740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1831}}^1$

素因数の和:1858

約数の個数: 48

約数和(自身を含む): 7386624

約数和(自身を除く): 4566884

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 1831, 3662, 7324, 9155, 12817, 18310, 20141, 25634, 36620, 40282, 51268, 64085, 80564, 100705, 128170, 140987, 201410, 256340, 281974, 402820, 563948, 704935, 1409870, 2819740]

約数ペア:

[(1, 2819740), (2, 1409870), (4, 704935), (5, 563948), (7, 402820), (10, 281974), (11, 256340), (14, 201410), (20, 140987), (22, 128170), (28, 100705), (35, 80564), (44, 64085), (55, 51268), (70, 40282), (77, 36620), (110, 25634), (140, 20141), (154, 18310), (220, 12817), (308, 9155), (385, 7324), (770, 3662), (1540, 1831)]