64401820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{460013}}^1$

素因数の和:460029

約数の個数: 24

約数和(自身を含む): 154564704

約数和(自身を除く): 90162884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 460013, 920026, 1840052, 2300065, 3220091, 4600130, 6440182, 9200260, 12880364, 16100455, 32200910, 64401820]

約数ペア:

[(1, 64401820), (2, 32200910), (4, 16100455), (5, 12880364), (7, 9200260), (10, 6440182), (14, 4600130), (20, 3220091), (28, 2300065), (35, 1840052), (70, 920026), (140, 460013)]