890385405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{271}}^1$

素因数の和:411

約数の個数: 128

約数和(自身を含む): 1842462720

約数和(自身を除く): 952077315

約数列:

[1, 3, 5, 7, 13, 15, 21, 29, 35, 39, 65, 83, 87, 91, 105, 145, 195, 203, 249, 271, 273, 377, 415, 435, 455, 581, 609, 813, 1015, 1079, 1131, 1245, 1355, 1365, 1743, 1885, 1897, 2407, 2639, 2905, 3045, 3237, 3523, 4065, 5395, 5655, 5691, 7221, 7553, 7859, 7917, 8715, 9485, 10569, 12035, 13195, 16185, 16849, 17615, 22493, 22659, 23577, 24661, 28455, 31291, 36105, 37765, 39295, 39585, 50547, 52845, 55013, 67479, 73983, 84245, 93873, 102167, 112465, 113295, 117885, 123305, 156455, 157451, 165039, 219037, 252735, 275065, 292409, 306501, 337395, 369915, 469365, 472353, 510835, 652297, 657111, 715169, 787255, 825195, 877227, 1095185, 1462045, 1532505, 1956891, 2046863, 2145507, 2361765, 3261485, 3285555, 3575845, 4386135, 4566079, 6140589, 8479861, 9784455, 10234315, 10727535, 13698237, 22830395, 25439583, 30702945, 42399305, 59359027, 68491185, 127197915, 178077081, 296795135, 890385405]

約数ペア:

[(1, 890385405), (3, 296795135), (5, 178077081), (7, 127197915), (13, 68491185), (15, 59359027), (21, 42399305), (29, 30702945), (35, 25439583), (39, 22830395), (65, 13698237), (83, 10727535), (87, 10234315), (91, 9784455), (105, 8479861), (145, 6140589), (195, 4566079), (203, 4386135), (249, 3575845), (271, 3285555), (273, 3261485), (377, 2361765), (415, 2145507), (435, 2046863), (455, 1956891), (581, 1532505), (609, 1462045), (813, 1095185), (1015, 877227), (1079, 825195), (1131, 787255), (1245, 715169), (1355, 657111), (1365, 652297), (1743, 510835), (1885, 472353), (1897, 469365), (2407, 369915), (2639, 337395), (2905, 306501), (3045, 292409), (3237, 275065), (3523, 252735), (4065, 219037), (5395, 165039), (5655, 157451), (5691, 156455), (7221, 123305), (7553, 117885), (7859, 113295), (7917, 112465), (8715, 102167), (9485, 93873), (10569, 84245), (12035, 73983), (13195, 67479), (16185, 55013), (16849, 52845), (17615, 50547), (22493, 39585), (22659, 39295), (23577, 37765), (24661, 36105), (28455, 31291)]