1641500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{67}}^1$

素因数の和:100

約数の個数: 72

約数和(自身を含む): 4232592

約数和(自身を除く): 2591092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 67, 70, 98, 100, 125, 134, 140, 175, 196, 245, 250, 268, 335, 350, 469, 490, 500, 670, 700, 875, 938, 980, 1225, 1340, 1675, 1750, 1876, 2345, 2450, 3283, 3350, 3500, 4690, 4900, 6125, 6566, 6700, 8375, 9380, 11725, 12250, 13132, 16415, 16750, 23450, 24500, 32830, 33500, 46900, 58625, 65660, 82075, 117250, 164150, 234500, 328300, 410375, 820750, 1641500]

約数ペア:

[(1, 1641500), (2, 820750), (4, 410375), (5, 328300), (7, 234500), (10, 164150), (14, 117250), (20, 82075), (25, 65660), (28, 58625), (35, 46900), (49, 33500), (50, 32830), (67, 24500), (70, 23450), (98, 16750), (100, 16415), (125, 13132), (134, 12250), (140, 11725), (175, 9380), (196, 8375), (245, 6700), (250, 6566), (268, 6125), (335, 4900), (350, 4690), (469, 3500), (490, 3350), (500, 3283), (670, 2450), (700, 2345), (875, 1876), (938, 1750), (980, 1675), (1225, 1340)]