19816250

素因数分解:

$2^1\times 5^4\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:296

約数の個数: 40

約数和(自身を含む): 37787904

約数和(自身を除く): 17971654

約数列:

[1, 2, 5, 10, 25, 50, 83, 125, 166, 191, 250, 382, 415, 625, 830, 955, 1250, 1910, 2075, 4150, 4775, 9550, 10375, 15853, 20750, 23875, 31706, 47750, 51875, 79265, 103750, 119375, 158530, 238750, 396325, 792650, 1981625, 3963250, 9908125, 19816250]

約数ペア:

[(1, 19816250), (2, 9908125), (5, 3963250), (10, 1981625), (25, 792650), (50, 396325), (83, 238750), (125, 158530), (166, 119375), (191, 103750), (250, 79265), (382, 51875), (415, 47750), (625, 31706), (830, 23875), (955, 20750), (1250, 15853), (1910, 10375), (2075, 9550), (4150, 4775)]