24775000

素因数分解:

$2^3\times 5^5\times {\mathrm{991}}^1$

素因数の和:1022

約数の個数: 48

約数和(自身を含む): 58121280

約数和(自身を除く): 33346280

約数列:

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

約数ペア:

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