28213822

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 56448000

約数和(自身を除く): 28234178

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 41, 82, 91, 133, 182, 199, 247, 266, 287, 398, 494, 533, 574, 779, 1066, 1393, 1558, 1729, 2587, 2786, 3458, 3731, 3781, 5174, 5453, 7462, 7562, 8159, 10127, 10906, 16318, 18109, 20254, 26467, 36218, 49153, 52934, 57113, 70889, 98306, 106067, 114226, 141778, 155021, 212134, 310042, 344071, 688142, 742469, 1085147, 1484938, 2015273, 2170294, 4030546, 14106911, 28213822]

約数ペア:

[(1, 28213822), (2, 14106911), (7, 4030546), (13, 2170294), (14, 2015273), (19, 1484938), (26, 1085147), (38, 742469), (41, 688142), (82, 344071), (91, 310042), (133, 212134), (182, 155021), (199, 141778), (247, 114226), (266, 106067), (287, 98306), (398, 70889), (494, 57113), (533, 52934), (574, 49153), (779, 36218), (1066, 26467), (1393, 20254), (1558, 18109), (1729, 16318), (2587, 10906), (2786, 10127), (3458, 8159), (3731, 7562), (3781, 7462), (5174, 5453)]