20922587660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{28607}}^1$

素因数の和:28755

約数の個数: 96

約数和(自身を含む): 49455221760

約数和(自身を除く): 28532634100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 97, 116, 130, 145, 194, 260, 290, 377, 388, 485, 580, 754, 970, 1261, 1508, 1885, 1940, 2522, 2813, 3770, 5044, 5626, 6305, 7540, 11252, 12610, 14065, 25220, 28130, 28607, 36569, 56260, 57214, 73138, 114428, 143035, 146276, 182845, 286070, 365690, 371891, 572140, 731380, 743782, 829603, 1487564, 1659206, 1859455, 2774879, 3318412, 3718910, 4148015, 5549758, 7437820, 8296030, 10784839, 11099516, 13874395, 16592060, 21569678, 27748790, 36073427, 43139356, 53924195, 55497580, 72146854, 80471491, 107848390, 144293708, 160942982, 180367135, 215696780, 321885964, 360734270, 402357455, 721468540, 804714910, 1046129383, 1609429820, 2092258766, 4184517532, 5230646915, 10461293830, 20922587660]

約数ペア:

[(1, 20922587660), (2, 10461293830), (4, 5230646915), (5, 4184517532), (10, 2092258766), (13, 1609429820), (20, 1046129383), (26, 804714910), (29, 721468540), (52, 402357455), (58, 360734270), (65, 321885964), (97, 215696780), (116, 180367135), (130, 160942982), (145, 144293708), (194, 107848390), (260, 80471491), (290, 72146854), (377, 55497580), (388, 53924195), (485, 43139356), (580, 36073427), (754, 27748790), (970, 21569678), (1261, 16592060), (1508, 13874395), (1885, 11099516), (1940, 10784839), (2522, 8296030), (2813, 7437820), (3770, 5549758), (5044, 4148015), (5626, 3718910), (6305, 3318412), (7540, 2774879), (11252, 1859455), (12610, 1659206), (14065, 1487564), (25220, 829603), (28130, 743782), (28607, 731380), (36569, 572140), (56260, 371891), (57214, 365690), (73138, 286070), (114428, 182845), (143035, 146276)]