19622500

素因数分解:

$2^2\times 5^4\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:238

約数の個数: 60

約数和(自身を含む): 44085888

約数和(自身を除く): 24463388

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 100, 125, 167, 188, 235, 250, 334, 470, 500, 625, 668, 835, 940, 1175, 1250, 1670, 2350, 2500, 3340, 4175, 4700, 5875, 7849, 8350, 11750, 15698, 16700, 20875, 23500, 29375, 31396, 39245, 41750, 58750, 78490, 83500, 104375, 117500, 156980, 196225, 208750, 392450, 417500, 784900, 981125, 1962250, 3924500, 4905625, 9811250, 19622500]

約数ペア:

[(1, 19622500), (2, 9811250), (4, 4905625), (5, 3924500), (10, 1962250), (20, 981125), (25, 784900), (47, 417500), (50, 392450), (94, 208750), (100, 196225), (125, 156980), (167, 117500), (188, 104375), (235, 83500), (250, 78490), (334, 58750), (470, 41750), (500, 39245), (625, 31396), (668, 29375), (835, 23500), (940, 20875), (1175, 16700), (1250, 15698), (1670, 11750), (2350, 8350), (2500, 7849), (3340, 5875), (4175, 4700)]