41980000

素因数分解:

$2^5\times 5^4\times {\mathrm{2099}}^1$

素因数の和:2129

約数の個数: 60

約数和(自身を含む): 103326300

約数和(自身を除く): 61346300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 2000, 2099, 2500, 4000, 4198, 5000, 8396, 10000, 10495, 16792, 20000, 20990, 33584, 41980, 52475, 67168, 83960, 104950, 167920, 209900, 262375, 335840, 419800, 524750, 839600, 1049500, 1311875, 1679200, 2099000, 2623750, 4198000, 5247500, 8396000, 10495000, 20990000, 41980000]

約数ペア:

[(1, 41980000), (2, 20990000), (4, 10495000), (5, 8396000), (8, 5247500), (10, 4198000), (16, 2623750), (20, 2099000), (25, 1679200), (32, 1311875), (40, 1049500), (50, 839600), (80, 524750), (100, 419800), (125, 335840), (160, 262375), (200, 209900), (250, 167920), (400, 104950), (500, 83960), (625, 67168), (800, 52475), (1000, 41980), (1250, 33584), (2000, 20990), (2099, 20000), (2500, 16792), (4000, 10495), (4198, 10000), (5000, 8396)]