12961840

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:230

約数の個数: 80

約数和(自身を含む): 32230080

約数和(自身を除く): 19268240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 37, 40, 58, 74, 80, 116, 145, 148, 151, 185, 232, 290, 296, 302, 370, 464, 580, 592, 604, 740, 755, 1073, 1160, 1208, 1480, 1510, 2146, 2320, 2416, 2960, 3020, 4292, 4379, 5365, 5587, 6040, 8584, 8758, 10730, 11174, 12080, 17168, 17516, 21460, 21895, 22348, 27935, 35032, 42920, 43790, 44696, 55870, 70064, 85840, 87580, 89392, 111740, 162023, 175160, 223480, 324046, 350320, 446960, 648092, 810115, 1296184, 1620230, 2592368, 3240460, 6480920, 12961840]

約数ペア:

[(1, 12961840), (2, 6480920), (4, 3240460), (5, 2592368), (8, 1620230), (10, 1296184), (16, 810115), (20, 648092), (29, 446960), (37, 350320), (40, 324046), (58, 223480), (74, 175160), (80, 162023), (116, 111740), (145, 89392), (148, 87580), (151, 85840), (185, 70064), (232, 55870), (290, 44696), (296, 43790), (302, 42920), (370, 35032), (464, 27935), (580, 22348), (592, 21895), (604, 21460), (740, 17516), (755, 17168), (1073, 12080), (1160, 11174), (1208, 10730), (1480, 8758), (1510, 8584), (2146, 6040), (2320, 5587), (2416, 5365), (2960, 4379), (3020, 4292)]