20057178

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 43765920

約数和(自身を除く): 23708742

約数列:

[1, 2, 3, 6, 17, 34, 43, 51, 86, 102, 129, 258, 269, 289, 538, 578, 731, 807, 867, 1462, 1614, 1734, 2193, 4386, 4573, 9146, 11567, 12427, 13719, 23134, 24854, 27438, 34701, 37281, 69402, 74562, 77741, 155482, 196639, 233223, 393278, 466446, 589917, 1179834, 3342863, 6685726, 10028589, 20057178]

約数ペア:

[(1, 20057178), (2, 10028589), (3, 6685726), (6, 3342863), (17, 1179834), (34, 589917), (43, 466446), (51, 393278), (86, 233223), (102, 196639), (129, 155482), (258, 77741), (269, 74562), (289, 69402), (538, 37281), (578, 34701), (731, 27438), (807, 24854), (867, 23134), (1462, 13719), (1614, 12427), (1734, 11567), (2193, 9146), (4386, 4573)]