400456749

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3967}}^1$

素因数の和:4030

約数の個数: 64

約数和(自身を含む): 731381760

約数和(自身を除く): 330925011

約数列:

[1, 3, 7, 11, 19, 21, 23, 33, 57, 69, 77, 133, 161, 209, 231, 253, 399, 437, 483, 627, 759, 1311, 1463, 1771, 3059, 3967, 4389, 4807, 5313, 9177, 11901, 14421, 27769, 33649, 43637, 75373, 83307, 91241, 100947, 130911, 226119, 273723, 305459, 527611, 638687, 829103, 916377, 1003651, 1582833, 1733579, 1916061, 2487309, 3010953, 5200737, 5803721, 7025557, 12135053, 17411163, 19069369, 21076671, 36405159, 57208107, 133485583, 400456749]

約数ペア:

[(1, 400456749), (3, 133485583), (7, 57208107), (11, 36405159), (19, 21076671), (21, 19069369), (23, 17411163), (33, 12135053), (57, 7025557), (69, 5803721), (77, 5200737), (133, 3010953), (161, 2487309), (209, 1916061), (231, 1733579), (253, 1582833), (399, 1003651), (437, 916377), (483, 829103), (627, 638687), (759, 527611), (1311, 305459), (1463, 273723), (1771, 226119), (3059, 130911), (3967, 100947), (4389, 91241), (4807, 83307), (5313, 75373), (9177, 43637), (11901, 33649), (14421, 27769)]