633519220

素因数分解:

$2^2\times 5^1\times {\mathrm{1621}}^1\times {\mathrm{19541}}^1$

素因数の和:21171

約数の個数: 24

約数和(自身を含む): 1331279208

約数和(自身を除く): 697759988

約数列:

[1, 2, 4, 5, 10, 20, 1621, 3242, 6484, 8105, 16210, 19541, 32420, 39082, 78164, 97705, 195410, 390820, 31675961, 63351922, 126703844, 158379805, 316759610, 633519220]

約数ペア:

[(1, 633519220), (2, 316759610), (4, 158379805), (5, 126703844), (10, 63351922), (20, 31675961), (1621, 390820), (3242, 195410), (6484, 97705), (8105, 78164), (16210, 39082), (19541, 32420)]