20675872

素因数分解:

$2^5\times 7^1\times {\mathrm{241}}^1\times {\mathrm{383}}^1$

素因数の和:641

約数の個数: 48

約数和(自身を含む): 46835712

約数和(自身を除く): 26159840

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 241, 383, 482, 766, 964, 1532, 1687, 1928, 2681, 3064, 3374, 3856, 5362, 6128, 6748, 7712, 10724, 12256, 13496, 21448, 26992, 42896, 53984, 85792, 92303, 184606, 369212, 646121, 738424, 1292242, 1476848, 2584484, 2953696, 5168968, 10337936, 20675872]

約数ペア:

[(1, 20675872), (2, 10337936), (4, 5168968), (7, 2953696), (8, 2584484), (14, 1476848), (16, 1292242), (28, 738424), (32, 646121), (56, 369212), (112, 184606), (224, 92303), (241, 85792), (383, 53984), (482, 42896), (766, 26992), (964, 21448), (1532, 13496), (1687, 12256), (1928, 10724), (2681, 7712), (3064, 6748), (3374, 6128), (3856, 5362)]