18886987180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{757297}}^1$

素因数の和:757378

約数の個数: 48

約数和(自身を含む): 41984601120

約数和(自身を除く): 23097613940

約数列:

[1, 2, 4, 5, 10, 20, 29, 43, 58, 86, 116, 145, 172, 215, 290, 430, 580, 860, 1247, 2494, 4988, 6235, 12470, 24940, 757297, 1514594, 3029188, 3786485, 7572970, 15145940, 21961613, 32563771, 43923226, 65127542, 87846452, 109808065, 130255084, 162818855, 219616130, 325637710, 439232260, 651275420, 944349359, 1888698718, 3777397436, 4721746795, 9443493590, 18886987180]

約数ペア:

[(1, 18886987180), (2, 9443493590), (4, 4721746795), (5, 3777397436), (10, 1888698718), (20, 944349359), (29, 651275420), (43, 439232260), (58, 325637710), (86, 219616130), (116, 162818855), (145, 130255084), (172, 109808065), (215, 87846452), (290, 65127542), (430, 43923226), (580, 32563771), (860, 21961613), (1247, 15145940), (2494, 7572970), (4988, 3786485), (6235, 3029188), (12470, 1514594), (24940, 757297)]