20160980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:273

約数の個数: 96

約数和(自身を含む): 52690176

約数和(自身を除く): 32529196

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 43, 68, 70, 85, 86, 119, 140, 170, 172, 197, 215, 238, 301, 340, 394, 430, 476, 595, 602, 731, 788, 860, 985, 1190, 1204, 1379, 1462, 1505, 1970, 2380, 2758, 2924, 3010, 3349, 3655, 3940, 5117, 5516, 6020, 6698, 6895, 7310, 8471, 10234, 13396, 13790, 14620, 16745, 16942, 20468, 23443, 25585, 27580, 33490, 33884, 42355, 46886, 51170, 59297, 66980, 84710, 93772, 102340, 117215, 118594, 144007, 169420, 234430, 237188, 288014, 296485, 468860, 576028, 592970, 720035, 1008049, 1185940, 1440070, 2016098, 2880140, 4032196, 5040245, 10080490, 20160980]

約数ペア:

[(1, 20160980), (2, 10080490), (4, 5040245), (5, 4032196), (7, 2880140), (10, 2016098), (14, 1440070), (17, 1185940), (20, 1008049), (28, 720035), (34, 592970), (35, 576028), (43, 468860), (68, 296485), (70, 288014), (85, 237188), (86, 234430), (119, 169420), (140, 144007), (170, 118594), (172, 117215), (197, 102340), (215, 93772), (238, 84710), (301, 66980), (340, 59297), (394, 51170), (430, 46886), (476, 42355), (595, 33884), (602, 33490), (731, 27580), (788, 25585), (860, 23443), (985, 20468), (1190, 16942), (1204, 16745), (1379, 14620), (1462, 13790), (1505, 13396), (1970, 10234), (2380, 8471), (2758, 7310), (2924, 6895), (3010, 6698), (3349, 6020), (3655, 5516), (3940, 5117)]