131907880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:148

約数の個数: 128

約数和(自身を含む): 342720000

約数和(自身を除く): 210812120

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 79, 95, 104, 130, 152, 158, 169, 190, 247, 260, 316, 338, 380, 395, 494, 520, 632, 676, 760, 790, 845, 988, 1027, 1235, 1352, 1501, 1580, 1690, 1976, 2054, 2197, 2470, 3002, 3160, 3211, 3380, 4108, 4394, 4940, 5135, 6004, 6422, 6760, 7505, 8216, 8788, 9880, 10270, 10985, 12008, 12844, 13351, 15010, 16055, 17576, 19513, 20540, 21970, 25688, 26702, 30020, 32110, 39026, 41080, 41743, 43940, 53404, 60040, 64220, 66755, 78052, 83486, 87880, 97565, 106808, 128440, 133510, 156104, 166972, 173563, 195130, 208715, 253669, 267020, 333944, 347126, 390260, 417430, 507338, 534040, 694252, 780520, 834860, 867815, 1014676, 1268345, 1388504, 1669720, 1735630, 2029352, 2536690, 3297697, 3471260, 5073380, 6595394, 6942520, 10146760, 13190788, 16488485, 26381576, 32976970, 65953940, 131907880]

約数ペア:

[(1, 131907880), (2, 65953940), (4, 32976970), (5, 26381576), (8, 16488485), (10, 13190788), (13, 10146760), (19, 6942520), (20, 6595394), (26, 5073380), (38, 3471260), (40, 3297697), (52, 2536690), (65, 2029352), (76, 1735630), (79, 1669720), (95, 1388504), (104, 1268345), (130, 1014676), (152, 867815), (158, 834860), (169, 780520), (190, 694252), (247, 534040), (260, 507338), (316, 417430), (338, 390260), (380, 347126), (395, 333944), (494, 267020), (520, 253669), (632, 208715), (676, 195130), (760, 173563), (790, 166972), (845, 156104), (988, 133510), (1027, 128440), (1235, 106808), (1352, 97565), (1501, 87880), (1580, 83486), (1690, 78052), (1976, 66755), (2054, 64220), (2197, 60040), (2470, 53404), (3002, 43940), (3160, 41743), (3211, 41080), (3380, 39026), (4108, 32110), (4394, 30020), (4940, 26702), (5135, 25688), (6004, 21970), (6422, 20540), (6760, 19513), (7505, 17576), (8216, 16055), (8788, 15010), (9880, 13351), (10270, 12844), (10985, 12008)]