80874040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:257

約数の個数: 128

約数和(自身を含む): 210470400

約数和(自身を除く): 129596360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 31, 40, 52, 58, 62, 65, 104, 116, 124, 130, 145, 155, 173, 232, 248, 260, 290, 310, 346, 377, 403, 520, 580, 620, 692, 754, 806, 865, 899, 1160, 1240, 1384, 1508, 1612, 1730, 1798, 1885, 2015, 2249, 3016, 3224, 3460, 3596, 3770, 4030, 4495, 4498, 5017, 5363, 6920, 7192, 7540, 8060, 8990, 8996, 10034, 10726, 11245, 11687, 15080, 16120, 17980, 17992, 20068, 21452, 22490, 23374, 25085, 26815, 35960, 40136, 42904, 44980, 46748, 50170, 53630, 58435, 65221, 69719, 89960, 93496, 100340, 107260, 116870, 130442, 139438, 155527, 200680, 214520, 233740, 260884, 278876, 311054, 326105, 348595, 467480, 521768, 557752, 622108, 652210, 697190, 777635, 1244216, 1304420, 1394380, 1555270, 2021851, 2608840, 2788760, 3110540, 4043702, 6221080, 8087404, 10109255, 16174808, 20218510, 40437020, 80874040]

約数ペア:

[(1, 80874040), (2, 40437020), (4, 20218510), (5, 16174808), (8, 10109255), (10, 8087404), (13, 6221080), (20, 4043702), (26, 3110540), (29, 2788760), (31, 2608840), (40, 2021851), (52, 1555270), (58, 1394380), (62, 1304420), (65, 1244216), (104, 777635), (116, 697190), (124, 652210), (130, 622108), (145, 557752), (155, 521768), (173, 467480), (232, 348595), (248, 326105), (260, 311054), (290, 278876), (310, 260884), (346, 233740), (377, 214520), (403, 200680), (520, 155527), (580, 139438), (620, 130442), (692, 116870), (754, 107260), (806, 100340), (865, 93496), (899, 89960), (1160, 69719), (1240, 65221), (1384, 58435), (1508, 53630), (1612, 50170), (1730, 46748), (1798, 44980), (1885, 42904), (2015, 40136), (2249, 35960), (3016, 26815), (3224, 25085), (3460, 23374), (3596, 22490), (3770, 21452), (4030, 20068), (4495, 17992), (4498, 17980), (5017, 16120), (5363, 15080), (6920, 11687), (7192, 11245), (7540, 10726), (8060, 10034), (8990, 8996)]