18816687520

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{53}}^1\times {\mathrm{2309}}^1$

素因数の和:2439

約数の個数: 144

約数和(自身を含む): 46821657960

約数和(自身を除く): 28004970440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 53, 62, 80, 106, 124, 155, 160, 212, 248, 265, 310, 424, 496, 530, 620, 848, 961, 992, 1060, 1240, 1643, 1696, 1922, 2120, 2309, 2480, 3286, 3844, 4240, 4618, 4805, 4960, 6572, 7688, 8215, 8480, 9236, 9610, 11545, 13144, 15376, 16430, 18472, 19220, 23090, 26288, 30752, 32860, 36944, 38440, 46180, 50933, 52576, 65720, 71579, 73888, 76880, 92360, 101866, 122377, 131440, 143158, 153760, 184720, 203732, 244754, 254665, 262880, 286316, 357895, 369440, 407464, 489508, 509330, 572632, 611885, 715790, 814928, 979016, 1018660, 1145264, 1223770, 1431580, 1629856, 1958032, 2037320, 2218949, 2290528, 2447540, 2863160, 3793687, 3916064, 4074640, 4437898, 4895080, 5726320, 7587374, 8149280, 8875796, 9790160, 11094745, 11452640, 15174748, 17751592, 18968435, 19580320, 22189490, 30349496, 35503184, 37936870, 44378980, 60698992, 71006368, 75873740, 88757960, 117604297, 121397984, 151747480, 177515920, 235208594, 303494960, 355031840, 470417188, 588021485, 606989920, 940834376, 1176042970, 1881668752, 2352085940, 3763337504, 4704171880, 9408343760, 18816687520]

約数ペア:

[(1, 18816687520), (2, 9408343760), (4, 4704171880), (5, 3763337504), (8, 2352085940), (10, 1881668752), (16, 1176042970), (20, 940834376), (31, 606989920), (32, 588021485), (40, 470417188), (53, 355031840), (62, 303494960), (80, 235208594), (106, 177515920), (124, 151747480), (155, 121397984), (160, 117604297), (212, 88757960), (248, 75873740), (265, 71006368), (310, 60698992), (424, 44378980), (496, 37936870), (530, 35503184), (620, 30349496), (848, 22189490), (961, 19580320), (992, 18968435), (1060, 17751592), (1240, 15174748), (1643, 11452640), (1696, 11094745), (1922, 9790160), (2120, 8875796), (2309, 8149280), (2480, 7587374), (3286, 5726320), (3844, 4895080), (4240, 4437898), (4618, 4074640), (4805, 3916064), (4960, 3793687), (6572, 2863160), (7688, 2447540), (8215, 2290528), (8480, 2218949), (9236, 2037320), (9610, 1958032), (11545, 1629856), (13144, 1431580), (15376, 1223770), (16430, 1145264), (18472, 1018660), (19220, 979016), (23090, 814928), (26288, 715790), (30752, 611885), (32860, 572632), (36944, 509330), (38440, 489508), (46180, 407464), (50933, 369440), (52576, 357895), (65720, 286316), (71579, 262880), (73888, 254665), (76880, 244754), (92360, 203732), (101866, 184720), (122377, 153760), (131440, 143158)]