813428

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 1881600

約数和(自身を除く): 1068172

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 76, 77, 133, 139, 154, 209, 266, 278, 308, 418, 532, 556, 836, 973, 1463, 1529, 1946, 2641, 2926, 3058, 3892, 5282, 5852, 6116, 10564, 10703, 18487, 21406, 29051, 36974, 42812, 58102, 73948, 116204, 203357, 406714, 813428]

約数ペア:

[(1, 813428), (2, 406714), (4, 203357), (7, 116204), (11, 73948), (14, 58102), (19, 42812), (22, 36974), (28, 29051), (38, 21406), (44, 18487), (76, 10703), (77, 10564), (133, 6116), (139, 5852), (154, 5282), (209, 3892), (266, 3058), (278, 2926), (308, 2641), (418, 1946), (532, 1529), (556, 1463), (836, 973)]