1298500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{53}}^1$

素因数の和:86

約数の個数: 72

約数和(自身を含む): 3361176

約数和(自身を除く): 2062676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 53, 70, 98, 100, 106, 125, 140, 175, 196, 212, 245, 250, 265, 350, 371, 490, 500, 530, 700, 742, 875, 980, 1060, 1225, 1325, 1484, 1750, 1855, 2450, 2597, 2650, 3500, 3710, 4900, 5194, 5300, 6125, 6625, 7420, 9275, 10388, 12250, 12985, 13250, 18550, 24500, 25970, 26500, 37100, 46375, 51940, 64925, 92750, 129850, 185500, 259700, 324625, 649250, 1298500]

約数ペア:

[(1, 1298500), (2, 649250), (4, 324625), (5, 259700), (7, 185500), (10, 129850), (14, 92750), (20, 64925), (25, 51940), (28, 46375), (35, 37100), (49, 26500), (50, 25970), (53, 24500), (70, 18550), (98, 13250), (100, 12985), (106, 12250), (125, 10388), (140, 9275), (175, 7420), (196, 6625), (212, 6125), (245, 5300), (250, 5194), (265, 4900), (350, 3710), (371, 3500), (490, 2650), (500, 2597), (530, 2450), (700, 1855), (742, 1750), (875, 1484), (980, 1325), (1060, 1225)]