18722690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{401}}^1$

素因数の和:467

約数の個数: 64

約数和(自身を含む): 41679360

約数和(自身を除く): 22956670

約数列:

[1, 2, 5, 7, 10, 14, 23, 29, 35, 46, 58, 70, 115, 145, 161, 203, 230, 290, 322, 401, 406, 667, 802, 805, 1015, 1334, 1610, 2005, 2030, 2807, 3335, 4010, 4669, 5614, 6670, 9223, 9338, 11629, 14035, 18446, 23258, 23345, 28070, 46115, 46690, 58145, 64561, 81403, 92230, 116290, 129122, 162806, 267467, 322805, 407015, 534934, 645610, 814030, 1337335, 1872269, 2674670, 3744538, 9361345, 18722690]

約数ペア:

[(1, 18722690), (2, 9361345), (5, 3744538), (7, 2674670), (10, 1872269), (14, 1337335), (23, 814030), (29, 645610), (35, 534934), (46, 407015), (58, 322805), (70, 267467), (115, 162806), (145, 129122), (161, 116290), (203, 92230), (230, 81403), (290, 64561), (322, 58145), (401, 46690), (406, 46115), (667, 28070), (802, 23345), (805, 23258), (1015, 18446), (1334, 14035), (1610, 11629), (2005, 9338), (2030, 9223), (2807, 6670), (3335, 5614), (4010, 4669)]