688889240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{30809}}^1$

素因数の和:30876

約数の個数: 64

約数和(自身を含む): 1708106400

約数和(自身を除く): 1019217160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 520, 559, 860, 1118, 1720, 2236, 2795, 4472, 5590, 11180, 22360, 30809, 61618, 123236, 154045, 246472, 308090, 400517, 616180, 801034, 1232360, 1324787, 1602068, 2002585, 2649574, 3204136, 4005170, 5299148, 6623935, 8010340, 10598296, 13247870, 16020680, 17222231, 26495740, 34444462, 52991480, 68888924, 86111155, 137777848, 172222310, 344444620, 688889240]

約数ペア:

[(1, 688889240), (2, 344444620), (4, 172222310), (5, 137777848), (8, 86111155), (10, 68888924), (13, 52991480), (20, 34444462), (26, 26495740), (40, 17222231), (43, 16020680), (52, 13247870), (65, 10598296), (86, 8010340), (104, 6623935), (130, 5299148), (172, 4005170), (215, 3204136), (260, 2649574), (344, 2002585), (430, 1602068), (520, 1324787), (559, 1232360), (860, 801034), (1118, 616180), (1720, 400517), (2236, 308090), (2795, 246472), (4472, 154045), (5590, 123236), (11180, 61618), (22360, 30809)]