28942000

素因数分解:

$2^4\times 5^3\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:551

約数の個数: 80

約数和(自身を含む): 72540000

約数和(自身を除く): 43598000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 40, 50, 58, 80, 100, 116, 125, 145, 200, 232, 250, 290, 400, 464, 499, 500, 580, 725, 998, 1000, 1160, 1450, 1996, 2000, 2320, 2495, 2900, 3625, 3992, 4990, 5800, 7250, 7984, 9980, 11600, 12475, 14471, 14500, 19960, 24950, 28942, 29000, 39920, 49900, 57884, 58000, 62375, 72355, 99800, 115768, 124750, 144710, 199600, 231536, 249500, 289420, 361775, 499000, 578840, 723550, 998000, 1157680, 1447100, 1808875, 2894200, 3617750, 5788400, 7235500, 14471000, 28942000]

約数ペア:

[(1, 28942000), (2, 14471000), (4, 7235500), (5, 5788400), (8, 3617750), (10, 2894200), (16, 1808875), (20, 1447100), (25, 1157680), (29, 998000), (40, 723550), (50, 578840), (58, 499000), (80, 361775), (100, 289420), (116, 249500), (125, 231536), (145, 199600), (200, 144710), (232, 124750), (250, 115768), (290, 99800), (400, 72355), (464, 62375), (499, 58000), (500, 57884), (580, 49900), (725, 39920), (998, 29000), (1000, 28942), (1160, 24950), (1450, 19960), (1996, 14500), (2000, 14471), (2320, 12475), (2495, 11600), (2900, 9980), (3625, 7984), (3992, 7250), (4990, 5800)]