20194468

素因数分解:

$2^2\times 7^3\times {\mathrm{41}}^1\times {\mathrm{359}}^1$

素因数の和:425

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 22141532

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 82, 98, 164, 196, 287, 343, 359, 574, 686, 718, 1148, 1372, 1436, 2009, 2513, 4018, 5026, 8036, 10052, 14063, 14719, 17591, 28126, 29438, 35182, 56252, 58876, 70364, 103033, 123137, 206066, 246274, 412132, 492548, 721231, 1442462, 2884924, 5048617, 10097234, 20194468]

約数ペア:

[(1, 20194468), (2, 10097234), (4, 5048617), (7, 2884924), (14, 1442462), (28, 721231), (41, 492548), (49, 412132), (82, 246274), (98, 206066), (164, 123137), (196, 103033), (287, 70364), (343, 58876), (359, 56252), (574, 35182), (686, 29438), (718, 28126), (1148, 17591), (1372, 14719), (1436, 14063), (2009, 10052), (2513, 8036), (4018, 5026)]