20346400

素因数分解:

$2^5\times 5^2\times {\mathrm{29}}^1\times {\mathrm{877}}^1$

素因数の和:926

約数の個数: 72

約数和(自身を含む): 51442020

約数和(自身を除く): 31095620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 32, 40, 50, 58, 80, 100, 116, 145, 160, 200, 232, 290, 400, 464, 580, 725, 800, 877, 928, 1160, 1450, 1754, 2320, 2900, 3508, 4385, 4640, 5800, 7016, 8770, 11600, 14032, 17540, 21925, 23200, 25433, 28064, 35080, 43850, 50866, 70160, 87700, 101732, 127165, 140320, 175400, 203464, 254330, 350800, 406928, 508660, 635825, 701600, 813856, 1017320, 1271650, 2034640, 2543300, 4069280, 5086600, 10173200, 20346400]

約数ペア:

[(1, 20346400), (2, 10173200), (4, 5086600), (5, 4069280), (8, 2543300), (10, 2034640), (16, 1271650), (20, 1017320), (25, 813856), (29, 701600), (32, 635825), (40, 508660), (50, 406928), (58, 350800), (80, 254330), (100, 203464), (116, 175400), (145, 140320), (160, 127165), (200, 101732), (232, 87700), (290, 70160), (400, 50866), (464, 43850), (580, 35080), (725, 28064), (800, 25433), (877, 23200), (928, 21925), (1160, 17540), (1450, 14032), (1754, 11600), (2320, 8770), (2900, 7016), (3508, 5800), (4385, 4640)]