90817000

素因数分解:

$2^3\times 5^3\times {\mathrm{197}}^1\times {\mathrm{461}}^1$

素因数の和:679

約数の個数: 64

約数和(自身を含む): 214053840

約数和(自身を除く): 123236840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 197, 200, 250, 394, 461, 500, 788, 922, 985, 1000, 1576, 1844, 1970, 2305, 3688, 3940, 4610, 4925, 7880, 9220, 9850, 11525, 18440, 19700, 23050, 24625, 39400, 46100, 49250, 57625, 90817, 92200, 98500, 115250, 181634, 197000, 230500, 363268, 454085, 461000, 726536, 908170, 1816340, 2270425, 3632680, 4540850, 9081700, 11352125, 18163400, 22704250, 45408500, 90817000]

約数ペア:

[(1, 90817000), (2, 45408500), (4, 22704250), (5, 18163400), (8, 11352125), (10, 9081700), (20, 4540850), (25, 3632680), (40, 2270425), (50, 1816340), (100, 908170), (125, 726536), (197, 461000), (200, 454085), (250, 363268), (394, 230500), (461, 197000), (500, 181634), (788, 115250), (922, 98500), (985, 92200), (1000, 90817), (1576, 57625), (1844, 49250), (1970, 46100), (2305, 39400), (3688, 24625), (3940, 23050), (4610, 19700), (4925, 18440), (7880, 11525), (9220, 9850)]