261408

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{389}}^1$

素因数の和:409

約数の個数: 48

約数和(自身を含む): 786240

約数和(自身を除く): 524832

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 389, 672, 778, 1167, 1556, 2334, 2723, 3112, 4668, 5446, 6224, 8169, 9336, 10892, 12448, 16338, 18672, 21784, 32676, 37344, 43568, 65352, 87136, 130704, 261408]

約数ペア:

[(1, 261408), (2, 130704), (3, 87136), (4, 65352), (6, 43568), (7, 37344), (8, 32676), (12, 21784), (14, 18672), (16, 16338), (21, 12448), (24, 10892), (28, 9336), (32, 8169), (42, 6224), (48, 5446), (56, 4668), (84, 3112), (96, 2723), (112, 2334), (168, 1556), (224, 1167), (336, 778), (389, 672)]