20374240

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4391}}^1$

素因数の和:4435

約数の個数: 48

約数和(自身を含む): 49805280

約数和(自身を除く): 29431040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4391, 4640, 8782, 17564, 21955, 35128, 43910, 70256, 87820, 127339, 140512, 175640, 254678, 351280, 509356, 636695, 702560, 1018712, 1273390, 2037424, 2546780, 4074848, 5093560, 10187120, 20374240]

約数ペア:

[(1, 20374240), (2, 10187120), (4, 5093560), (5, 4074848), (8, 2546780), (10, 2037424), (16, 1273390), (20, 1018712), (29, 702560), (32, 636695), (40, 509356), (58, 351280), (80, 254678), (116, 175640), (145, 140512), (160, 127339), (232, 87820), (290, 70256), (464, 43910), (580, 35128), (928, 21955), (1160, 17564), (2320, 8782), (4391, 4640)]