68640944

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{138389}}^1$

素因数の和:138428

約数の個数: 20

約数和(自身を含む): 137282880

約数和(自身を除く): 68641936

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 138389, 276778, 553556, 1107112, 2214224, 4290059, 8580118, 17160236, 34320472, 68640944]

約数ペア:

[(1, 68640944), (2, 34320472), (4, 17160236), (8, 8580118), (16, 4290059), (31, 2214224), (62, 1107112), (124, 553556), (248, 276778), (496, 138389)]