20121369604

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{12119}}^1$

素因数の和:12377

約数の個数: 72

約数和(自身を含む): 42130186560

約数和(自身を除く): 22008816956

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 197, 301, 394, 602, 788, 1204, 1379, 2107, 2758, 4214, 5516, 8428, 8471, 9653, 12119, 16942, 19306, 24238, 33884, 38612, 48476, 59297, 84833, 118594, 169666, 237188, 339332, 415079, 521117, 593831, 830158, 1042234, 1187662, 1660316, 2084468, 2375324, 2387443, 3647819, 4774886, 7295638, 9549772, 14591276, 16712101, 25534733, 33424202, 51069466, 66848404, 102138932, 102660049, 116984707, 205320098, 233969414, 410640196, 467938828, 718620343, 1437240686, 2874481372, 5030342401, 10060684802, 20121369604]

約数ペア:

[(1, 20121369604), (2, 10060684802), (4, 5030342401), (7, 2874481372), (14, 1437240686), (28, 718620343), (43, 467938828), (49, 410640196), (86, 233969414), (98, 205320098), (172, 116984707), (196, 102660049), (197, 102138932), (301, 66848404), (394, 51069466), (602, 33424202), (788, 25534733), (1204, 16712101), (1379, 14591276), (2107, 9549772), (2758, 7295638), (4214, 4774886), (5516, 3647819), (8428, 2387443), (8471, 2375324), (9653, 2084468), (12119, 1660316), (16942, 1187662), (19306, 1042234), (24238, 830158), (33884, 593831), (38612, 521117), (48476, 415079), (59297, 339332), (84833, 237188), (118594, 169666)]