20121164540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{421}}^1\times {\mathrm{4337}}^1$

素因数の和:4815

約数の個数: 96

約数和(自身を含む): 46132027200

約数和(自身を除く): 26010862660

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 421, 551, 580, 842, 1102, 1684, 2105, 2204, 2755, 4210, 4337, 5510, 7999, 8420, 8674, 11020, 12209, 15998, 17348, 21685, 24418, 31996, 39995, 43370, 48836, 61045, 79990, 82403, 86740, 122090, 125773, 159980, 164806, 231971, 244180, 251546, 329612, 412015, 463942, 503092, 628865, 824030, 927884, 1159855, 1257730, 1648060, 1825877, 2319710, 2389687, 2515460, 3651754, 4639420, 4779374, 7303508, 9129385, 9558748, 11948435, 18258770, 23896870, 34691663, 36517540, 47793740, 52950433, 69383326, 105900866, 138766652, 173458315, 211801732, 264752165, 346916630, 529504330, 693833260, 1006058227, 1059008660, 2012116454, 4024232908, 5030291135, 10060582270, 20121164540]

約数ペア:

[(1, 20121164540), (2, 10060582270), (4, 5030291135), (5, 4024232908), (10, 2012116454), (19, 1059008660), (20, 1006058227), (29, 693833260), (38, 529504330), (58, 346916630), (76, 264752165), (95, 211801732), (116, 173458315), (145, 138766652), (190, 105900866), (290, 69383326), (380, 52950433), (421, 47793740), (551, 36517540), (580, 34691663), (842, 23896870), (1102, 18258770), (1684, 11948435), (2105, 9558748), (2204, 9129385), (2755, 7303508), (4210, 4779374), (4337, 4639420), (5510, 3651754), (7999, 2515460), (8420, 2389687), (8674, 2319710), (11020, 1825877), (12209, 1648060), (15998, 1257730), (17348, 1159855), (21685, 927884), (24418, 824030), (31996, 628865), (39995, 503092), (43370, 463942), (48836, 412015), (61045, 329612), (79990, 251546), (82403, 244180), (86740, 231971), (122090, 164806), (125773, 159980)]