49550000

素因数分解:

$2^4\times 5^5\times {\mathrm{991}}^1$

素因数の和:1024

約数の個数: 60

約数和(自身を含む): 120117312

約数和(自身を除く): 70567312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 991, 1000, 1250, 1982, 2000, 2500, 3125, 3964, 4955, 5000, 6250, 7928, 9910, 10000, 12500, 15856, 19820, 24775, 25000, 39640, 49550, 50000, 79280, 99100, 123875, 198200, 247750, 396400, 495500, 619375, 991000, 1238750, 1982000, 2477500, 3096875, 4955000, 6193750, 9910000, 12387500, 24775000, 49550000]

約数ペア:

[(1, 49550000), (2, 24775000), (4, 12387500), (5, 9910000), (8, 6193750), (10, 4955000), (16, 3096875), (20, 2477500), (25, 1982000), (40, 1238750), (50, 991000), (80, 619375), (100, 495500), (125, 396400), (200, 247750), (250, 198200), (400, 123875), (500, 99100), (625, 79280), (991, 50000), (1000, 49550), (1250, 39640), (1982, 25000), (2000, 24775), (2500, 19820), (3125, 15856), (3964, 12500), (4955, 10000), (5000, 9910), (6250, 7928)]