40321960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:275

約数の個数: 128

約数和(自身を含む): 112907520

約数和(自身を除く): 72585560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 43, 56, 68, 70, 85, 86, 119, 136, 140, 170, 172, 197, 215, 238, 280, 301, 340, 344, 394, 430, 476, 595, 602, 680, 731, 788, 860, 952, 985, 1190, 1204, 1379, 1462, 1505, 1576, 1720, 1970, 2380, 2408, 2758, 2924, 3010, 3349, 3655, 3940, 4760, 5117, 5516, 5848, 6020, 6698, 6895, 7310, 7880, 8471, 10234, 11032, 12040, 13396, 13790, 14620, 16745, 16942, 20468, 23443, 25585, 26792, 27580, 29240, 33490, 33884, 40936, 42355, 46886, 51170, 55160, 59297, 66980, 67768, 84710, 93772, 102340, 117215, 118594, 133960, 144007, 169420, 187544, 204680, 234430, 237188, 288014, 296485, 338840, 468860, 474376, 576028, 592970, 720035, 937720, 1008049, 1152056, 1185940, 1440070, 2016098, 2371880, 2880140, 4032196, 5040245, 5760280, 8064392, 10080490, 20160980, 40321960]

約数ペア:

[(1, 40321960), (2, 20160980), (4, 10080490), (5, 8064392), (7, 5760280), (8, 5040245), (10, 4032196), (14, 2880140), (17, 2371880), (20, 2016098), (28, 1440070), (34, 1185940), (35, 1152056), (40, 1008049), (43, 937720), (56, 720035), (68, 592970), (70, 576028), (85, 474376), (86, 468860), (119, 338840), (136, 296485), (140, 288014), (170, 237188), (172, 234430), (197, 204680), (215, 187544), (238, 169420), (280, 144007), (301, 133960), (340, 118594), (344, 117215), (394, 102340), (430, 93772), (476, 84710), (595, 67768), (602, 66980), (680, 59297), (731, 55160), (788, 51170), (860, 46886), (952, 42355), (985, 40936), (1190, 33884), (1204, 33490), (1379, 29240), (1462, 27580), (1505, 26792), (1576, 25585), (1720, 23443), (1970, 20468), (2380, 16942), (2408, 16745), (2758, 14620), (2924, 13790), (3010, 13396), (3349, 12040), (3655, 11032), (3940, 10234), (4760, 8471), (5117, 7880), (5516, 7310), (5848, 6895), (6020, 6698)]