19614010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{157}}^1$

素因数の和:239

約数の個数: 48

約数和(自身を含む): 39537288

約数和(自身を除く): 19923278

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 157, 310, 314, 403, 785, 806, 961, 1570, 1922, 2015, 2041, 4030, 4082, 4805, 4867, 9610, 9734, 10205, 12493, 20410, 24335, 24986, 48670, 62465, 63271, 124930, 126542, 150877, 301754, 316355, 632710, 754385, 1508770, 1961401, 3922802, 9807005, 19614010]

約数ペア:

[(1, 19614010), (2, 9807005), (5, 3922802), (10, 1961401), (13, 1508770), (26, 754385), (31, 632710), (62, 316355), (65, 301754), (130, 150877), (155, 126542), (157, 124930), (310, 63271), (314, 62465), (403, 48670), (785, 24986), (806, 24335), (961, 20410), (1570, 12493), (1922, 10205), (2015, 9734), (2041, 9610), (4030, 4867), (4082, 4805)]