18129280

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2179}}^1$

素因数の和:2211

約数の個数: 64

約数和(自身を含む): 46695600

約数和(自身を除く): 28566320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 2179, 4160, 4358, 8320, 8716, 10895, 17432, 21790, 28327, 34864, 43580, 56654, 69728, 87160, 113308, 139456, 141635, 174320, 226616, 278912, 283270, 348640, 453232, 566540, 697280, 906464, 1133080, 1394560, 1812928, 2266160, 3625856, 4532320, 9064640, 18129280]

約数ペア:

[(1, 18129280), (2, 9064640), (4, 4532320), (5, 3625856), (8, 2266160), (10, 1812928), (13, 1394560), (16, 1133080), (20, 906464), (26, 697280), (32, 566540), (40, 453232), (52, 348640), (64, 283270), (65, 278912), (80, 226616), (104, 174320), (128, 141635), (130, 139456), (160, 113308), (208, 87160), (260, 69728), (320, 56654), (416, 43580), (520, 34864), (640, 28327), (832, 21790), (1040, 17432), (1664, 10895), (2080, 8716), (2179, 8320), (4160, 4358)]