2168556740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{523}}^1\times {\mathrm{4231}}^1$

素因数の和:4777

約数の個数: 72

約数和(自身を含む): 5308857792

約数和(自身を除く): 3140301052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 523, 980, 1046, 2092, 2615, 3661, 4231, 5230, 7322, 8462, 10460, 14644, 16924, 18305, 21155, 25627, 29617, 36610, 42310, 51254, 59234, 73220, 84620, 102508, 118468, 128135, 148085, 207319, 256270, 296170, 414638, 512540, 592340, 829276, 1036595, 2073190, 2212813, 4146380, 4425626, 8851252, 11064065, 15489691, 22128130, 30979382, 44256260, 61958764, 77448455, 108427837, 154896910, 216855674, 309793820, 433711348, 542139185, 1084278370, 2168556740]

約数ペア:

[(1, 2168556740), (2, 1084278370), (4, 542139185), (5, 433711348), (7, 309793820), (10, 216855674), (14, 154896910), (20, 108427837), (28, 77448455), (35, 61958764), (49, 44256260), (70, 30979382), (98, 22128130), (140, 15489691), (196, 11064065), (245, 8851252), (490, 4425626), (523, 4146380), (980, 2212813), (1046, 2073190), (2092, 1036595), (2615, 829276), (3661, 592340), (4231, 512540), (5230, 414638), (7322, 296170), (8462, 256270), (10460, 207319), (14644, 148085), (16924, 128135), (18305, 118468), (21155, 102508), (25627, 84620), (29617, 73220), (36610, 59234), (42310, 51254)]