82019920

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{211}}^1$

素因数の和:380

約数の個数: 80

約数和(自身を含む): 197790912

約数和(自身を除く): 115770992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 113, 172, 211, 215, 226, 344, 422, 430, 452, 565, 688, 844, 860, 904, 1055, 1130, 1688, 1720, 1808, 2110, 2260, 3376, 3440, 4220, 4520, 4859, 8440, 9040, 9073, 9718, 16880, 18146, 19436, 23843, 24295, 36292, 38872, 45365, 47686, 48590, 72584, 77744, 90730, 95372, 97180, 119215, 145168, 181460, 190744, 194360, 238430, 362920, 381488, 388720, 476860, 725840, 953720, 1025249, 1907440, 2050498, 4100996, 5126245, 8201992, 10252490, 16403984, 20504980, 41009960, 82019920]

約数ペア:

[(1, 82019920), (2, 41009960), (4, 20504980), (5, 16403984), (8, 10252490), (10, 8201992), (16, 5126245), (20, 4100996), (40, 2050498), (43, 1907440), (80, 1025249), (86, 953720), (113, 725840), (172, 476860), (211, 388720), (215, 381488), (226, 362920), (344, 238430), (422, 194360), (430, 190744), (452, 181460), (565, 145168), (688, 119215), (844, 97180), (860, 95372), (904, 90730), (1055, 77744), (1130, 72584), (1688, 48590), (1720, 47686), (1808, 45365), (2110, 38872), (2260, 36292), (3376, 24295), (3440, 23843), (4220, 19436), (4520, 18146), (4859, 16880), (8440, 9718), (9040, 9073)]