1338881360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{6337}}^1$

素因数の和:6508

約数の個数: 80

約数和(自身を含む): 3300830400

約数和(自身を除く): 1961949040

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 139, 152, 190, 278, 304, 380, 556, 695, 760, 1112, 1390, 1520, 2224, 2641, 2780, 5282, 5560, 6337, 10564, 11120, 12674, 13205, 21128, 25348, 26410, 31685, 42256, 50696, 52820, 63370, 101392, 105640, 120403, 126740, 211280, 240806, 253480, 481612, 506960, 602015, 880843, 963224, 1204030, 1761686, 1926448, 2408060, 3523372, 4404215, 4816120, 7046744, 8808430, 9632240, 14093488, 16736017, 17616860, 33472034, 35233720, 66944068, 70467440, 83680085, 133888136, 167360170, 267776272, 334720340, 669440680, 1338881360]

約数ペア:

[(1, 1338881360), (2, 669440680), (4, 334720340), (5, 267776272), (8, 167360170), (10, 133888136), (16, 83680085), (19, 70467440), (20, 66944068), (38, 35233720), (40, 33472034), (76, 17616860), (80, 16736017), (95, 14093488), (139, 9632240), (152, 8808430), (190, 7046744), (278, 4816120), (304, 4404215), (380, 3523372), (556, 2408060), (695, 1926448), (760, 1761686), (1112, 1204030), (1390, 963224), (1520, 880843), (2224, 602015), (2641, 506960), (2780, 481612), (5282, 253480), (5560, 240806), (6337, 211280), (10564, 126740), (11120, 120403), (12674, 105640), (13205, 101392), (21128, 63370), (25348, 52820), (26410, 50696), (31685, 42256)]