840268

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{113}}^1$

素因数の和:154

約数の個数: 36

約数和(自身を含む): 1752408

約数和(自身を除く): 912140

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 113, 143, 169, 226, 286, 338, 452, 572, 676, 1243, 1469, 1859, 2486, 2938, 3718, 4972, 5876, 7436, 16159, 19097, 32318, 38194, 64636, 76388, 210067, 420134, 840268]

約数ペア:

[(1, 840268), (2, 420134), (4, 210067), (11, 76388), (13, 64636), (22, 38194), (26, 32318), (44, 19097), (52, 16159), (113, 7436), (143, 5876), (169, 4972), (226, 3718), (286, 2938), (338, 2486), (452, 1859), (572, 1469), (676, 1243)]