28839920

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:474

約数の個数: 80

約数和(自身を含む): 71781120

約数和(自身を除く): 42941200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 40, 58, 62, 80, 116, 124, 145, 155, 232, 248, 290, 310, 401, 464, 496, 580, 620, 802, 899, 1160, 1240, 1604, 1798, 2005, 2320, 2480, 3208, 3596, 4010, 4495, 6416, 7192, 8020, 8990, 11629, 12431, 14384, 16040, 17980, 23258, 24862, 32080, 35960, 46516, 49724, 58145, 62155, 71920, 93032, 99448, 116290, 124310, 186064, 198896, 232580, 248620, 360499, 465160, 497240, 720998, 930320, 994480, 1441996, 1802495, 2883992, 3604990, 5767984, 7209980, 14419960, 28839920]

約数ペア:

[(1, 28839920), (2, 14419960), (4, 7209980), (5, 5767984), (8, 3604990), (10, 2883992), (16, 1802495), (20, 1441996), (29, 994480), (31, 930320), (40, 720998), (58, 497240), (62, 465160), (80, 360499), (116, 248620), (124, 232580), (145, 198896), (155, 186064), (232, 124310), (248, 116290), (290, 99448), (310, 93032), (401, 71920), (464, 62155), (496, 58145), (580, 49724), (620, 46516), (802, 35960), (899, 32080), (1160, 24862), (1240, 23258), (1604, 17980), (1798, 16040), (2005, 14384), (2320, 12431), (2480, 11629), (3208, 8990), (3596, 8020), (4010, 7192), (4495, 6416)]