28586740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:281

約数の個数: 96

約数和(自身を含む): 75075840

約数和(自身を除く): 46489100

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 113, 130, 139, 140, 182, 226, 260, 278, 364, 452, 455, 556, 565, 695, 791, 910, 973, 1130, 1390, 1469, 1582, 1807, 1820, 1946, 2260, 2780, 2938, 3164, 3614, 3892, 3955, 4865, 5876, 7228, 7345, 7910, 9035, 9730, 10283, 12649, 14690, 15707, 15820, 18070, 19460, 20566, 25298, 29380, 31414, 36140, 41132, 50596, 51415, 62828, 63245, 78535, 102830, 109949, 126490, 157070, 204191, 205660, 219898, 252980, 314140, 408382, 439796, 549745, 816764, 1020955, 1099490, 1429337, 2041910, 2198980, 2858674, 4083820, 5717348, 7146685, 14293370, 28586740]

約数ペア:

[(1, 28586740), (2, 14293370), (4, 7146685), (5, 5717348), (7, 4083820), (10, 2858674), (13, 2198980), (14, 2041910), (20, 1429337), (26, 1099490), (28, 1020955), (35, 816764), (52, 549745), (65, 439796), (70, 408382), (91, 314140), (113, 252980), (130, 219898), (139, 205660), (140, 204191), (182, 157070), (226, 126490), (260, 109949), (278, 102830), (364, 78535), (452, 63245), (455, 62828), (556, 51415), (565, 50596), (695, 41132), (791, 36140), (910, 31414), (973, 29380), (1130, 25298), (1390, 20566), (1469, 19460), (1582, 18070), (1807, 15820), (1820, 15707), (1946, 14690), (2260, 12649), (2780, 10283), (2938, 9730), (3164, 9035), (3614, 7910), (3892, 7345), (3955, 7228), (4865, 5876)]