18465872

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:208

約数の個数: 60

約数和(自身を含む): 39684960

約数和(自身を除く): 21219088

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 92, 139, 152, 184, 278, 304, 361, 368, 437, 556, 722, 874, 1112, 1444, 1748, 2224, 2641, 2888, 3197, 3496, 5282, 5776, 6394, 6992, 8303, 10564, 12788, 16606, 21128, 25576, 33212, 42256, 50179, 51152, 60743, 66424, 100358, 121486, 132848, 200716, 242972, 401432, 485944, 802864, 971888, 1154117, 2308234, 4616468, 9232936, 18465872]

約数ペア:

[(1, 18465872), (2, 9232936), (4, 4616468), (8, 2308234), (16, 1154117), (19, 971888), (23, 802864), (38, 485944), (46, 401432), (76, 242972), (92, 200716), (139, 132848), (152, 121486), (184, 100358), (278, 66424), (304, 60743), (361, 51152), (368, 50179), (437, 42256), (556, 33212), (722, 25576), (874, 21128), (1112, 16606), (1444, 12788), (1748, 10564), (2224, 8303), (2641, 6992), (2888, 6394), (3197, 5776), (3496, 5282)]