20010718

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:281

約数の個数: 48

約数和(自身を含む): 38208240

約数和(自身を除く): 18197522

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 113, 139, 182, 226, 278, 637, 791, 973, 1274, 1469, 1582, 1807, 1946, 2938, 3614, 5537, 6811, 10283, 11074, 12649, 13622, 15707, 20566, 25298, 31414, 71981, 88543, 109949, 143962, 177086, 204191, 219898, 408382, 769643, 1429337, 1539286, 2858674, 10005359, 20010718]

約数ペア:

[(1, 20010718), (2, 10005359), (7, 2858674), (13, 1539286), (14, 1429337), (26, 769643), (49, 408382), (91, 219898), (98, 204191), (113, 177086), (139, 143962), (182, 109949), (226, 88543), (278, 71981), (637, 31414), (791, 25298), (973, 20566), (1274, 15707), (1469, 13622), (1582, 12649), (1807, 11074), (1946, 10283), (2938, 6811), (3614, 5537)]