25495000

素因数分解:

$2^3\times 5^4\times {\mathrm{5099}}^1$

素因数の和:5125

約数の個数: 40

約数和(自身を含む): 59746500

約数和(自身を除く): 34251500

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 5099, 10198, 20396, 25495, 40792, 50990, 101980, 127475, 203960, 254950, 509900, 637375, 1019800, 1274750, 2549500, 3186875, 5099000, 6373750, 12747500, 25495000]

約数ペア:

[(1, 25495000), (2, 12747500), (4, 6373750), (5, 5099000), (8, 3186875), (10, 2549500), (20, 1274750), (25, 1019800), (40, 637375), (50, 509900), (100, 254950), (125, 203960), (200, 127475), (250, 101980), (500, 50990), (625, 40792), (1000, 25495), (1250, 20396), (2500, 10198), (5000, 5099)]