21835000

素因数分解:

$2^3\times 5^4\times {\mathrm{11}}^1\times {\mathrm{397}}^1$

素因数の和:434

約数の個数: 80

約数和(自身を含む): 55950840

約数和(自身を除く): 34115840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 200, 220, 250, 275, 397, 440, 500, 550, 625, 794, 1000, 1100, 1250, 1375, 1588, 1985, 2200, 2500, 2750, 3176, 3970, 4367, 5000, 5500, 6875, 7940, 8734, 9925, 11000, 13750, 15880, 17468, 19850, 21835, 27500, 34936, 39700, 43670, 49625, 55000, 79400, 87340, 99250, 109175, 174680, 198500, 218350, 248125, 397000, 436700, 496250, 545875, 873400, 992500, 1091750, 1985000, 2183500, 2729375, 4367000, 5458750, 10917500, 21835000]

約数ペア:

[(1, 21835000), (2, 10917500), (4, 5458750), (5, 4367000), (8, 2729375), (10, 2183500), (11, 1985000), (20, 1091750), (22, 992500), (25, 873400), (40, 545875), (44, 496250), (50, 436700), (55, 397000), (88, 248125), (100, 218350), (110, 198500), (125, 174680), (200, 109175), (220, 99250), (250, 87340), (275, 79400), (397, 55000), (440, 49625), (500, 43670), (550, 39700), (625, 34936), (794, 27500), (1000, 21835), (1100, 19850), (1250, 17468), (1375, 15880), (1588, 13750), (1985, 11000), (2200, 9925), (2500, 8734), (2750, 7940), (3176, 6875), (3970, 5500), (4367, 5000)]