20477212

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{631}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 43886080

約数和(自身を除く): 23408868

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 61, 76, 122, 133, 244, 266, 427, 532, 631, 854, 1159, 1262, 1708, 2318, 2524, 4417, 4636, 8113, 8834, 11989, 16226, 17668, 23978, 32452, 38491, 47956, 76982, 83923, 153964, 167846, 269437, 335692, 538874, 731329, 1077748, 1462658, 2925316, 5119303, 10238606, 20477212]

約数ペア:

[(1, 20477212), (2, 10238606), (4, 5119303), (7, 2925316), (14, 1462658), (19, 1077748), (28, 731329), (38, 538874), (61, 335692), (76, 269437), (122, 167846), (133, 153964), (244, 83923), (266, 76982), (427, 47956), (532, 38491), (631, 32452), (854, 23978), (1159, 17668), (1262, 16226), (1708, 11989), (2318, 8834), (2524, 8113), (4417, 4636)]