4955000

素因数分解:

$2^3\times 5^4\times {\mathrm{991}}^1$

素因数の和:1017

約数の個数: 40

約数和(自身を含む): 11621280

約数和(自身を除く): 6666280

約数列:

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

約数ペア:

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