209440960

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:582

約数の個数: 112

約数和(自身を含む): 527864832

約数和(自身を除く): 318423872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 43, 62, 64, 80, 86, 124, 155, 160, 172, 215, 248, 310, 320, 344, 430, 491, 496, 620, 688, 860, 982, 992, 1240, 1333, 1376, 1720, 1964, 1984, 2455, 2480, 2666, 2752, 3440, 3928, 4910, 4960, 5332, 6665, 6880, 7856, 9820, 9920, 10664, 13330, 13760, 15221, 15712, 19640, 21113, 21328, 26660, 30442, 31424, 39280, 42226, 42656, 53320, 60884, 76105, 78560, 84452, 85312, 105565, 106640, 121768, 152210, 157120, 168904, 211130, 213280, 243536, 304420, 337808, 422260, 426560, 487072, 608840, 654503, 675616, 844520, 974144, 1217680, 1309006, 1351232, 1689040, 2435360, 2618012, 3272515, 3378080, 4870720, 5236024, 6545030, 6756160, 10472048, 13090060, 20944096, 26180120, 41888192, 52360240, 104720480, 209440960]

約数ペア:

[(1, 209440960), (2, 104720480), (4, 52360240), (5, 41888192), (8, 26180120), (10, 20944096), (16, 13090060), (20, 10472048), (31, 6756160), (32, 6545030), (40, 5236024), (43, 4870720), (62, 3378080), (64, 3272515), (80, 2618012), (86, 2435360), (124, 1689040), (155, 1351232), (160, 1309006), (172, 1217680), (215, 974144), (248, 844520), (310, 675616), (320, 654503), (344, 608840), (430, 487072), (491, 426560), (496, 422260), (620, 337808), (688, 304420), (860, 243536), (982, 213280), (992, 211130), (1240, 168904), (1333, 157120), (1376, 152210), (1720, 121768), (1964, 106640), (1984, 105565), (2455, 85312), (2480, 84452), (2666, 78560), (2752, 76105), (3440, 60884), (3928, 53320), (4910, 42656), (4960, 42226), (5332, 39280), (6665, 31424), (6880, 30442), (7856, 26660), (9820, 21328), (9920, 21113), (10664, 19640), (13330, 15712), (13760, 15221)]