71540728

素因数分解:

$2^3\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1993}}^1$

素因数の和:2647

約数の個数: 32

約数和(自身を含む): 153617760

約数和(自身を除く): 82077032

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 641, 1282, 1993, 2564, 3986, 4487, 5128, 7972, 8974, 13951, 15944, 17948, 27902, 35896, 55804, 111608, 1277513, 2555026, 5110052, 8942591, 10220104, 17885182, 35770364, 71540728]

約数ペア:

[(1, 71540728), (2, 35770364), (4, 17885182), (7, 10220104), (8, 8942591), (14, 5110052), (28, 2555026), (56, 1277513), (641, 111608), (1282, 55804), (1993, 35896), (2564, 27902), (3986, 17948), (4487, 15944), (5128, 13951), (7972, 8974)]