209297920

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1$

素因数の和:386

約数の個数: 160

約数和(自身を含む): 570588480

約数和(自身を除く): 361290560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 64, 65, 76, 80, 95, 104, 128, 130, 152, 160, 190, 208, 247, 256, 260, 304, 320, 331, 380, 416, 494, 512, 520, 608, 640, 662, 760, 832, 988, 1040, 1216, 1235, 1280, 1324, 1520, 1655, 1664, 1976, 2080, 2432, 2470, 2560, 2648, 3040, 3310, 3328, 3952, 4160, 4303, 4864, 4940, 5296, 6080, 6289, 6620, 6656, 7904, 8320, 8606, 9728, 9880, 10592, 12160, 12578, 13240, 15808, 16640, 17212, 19760, 21184, 21515, 24320, 25156, 26480, 31445, 31616, 33280, 34424, 39520, 42368, 43030, 48640, 50312, 52960, 62890, 63232, 68848, 79040, 81757, 84736, 86060, 100624, 105920, 125780, 126464, 137696, 158080, 163514, 169472, 172120, 201248, 211840, 251560, 275392, 316160, 327028, 344240, 402496, 408785, 423680, 503120, 550784, 632320, 654056, 688480, 804992, 817570, 847360, 1006240, 1101568, 1308112, 1376960, 1609984, 1635140, 2012480, 2203136, 2616224, 2753920, 3219968, 3270280, 4024960, 5232448, 5507840, 6540560, 8049920, 10464896, 11015680, 13081120, 16099840, 20929792, 26162240, 41859584, 52324480, 104648960, 209297920]

約数ペア:

[(1, 209297920), (2, 104648960), (4, 52324480), (5, 41859584), (8, 26162240), (10, 20929792), (13, 16099840), (16, 13081120), (19, 11015680), (20, 10464896), (26, 8049920), (32, 6540560), (38, 5507840), (40, 5232448), (52, 4024960), (64, 3270280), (65, 3219968), (76, 2753920), (80, 2616224), (95, 2203136), (104, 2012480), (128, 1635140), (130, 1609984), (152, 1376960), (160, 1308112), (190, 1101568), (208, 1006240), (247, 847360), (256, 817570), (260, 804992), (304, 688480), (320, 654056), (331, 632320), (380, 550784), (416, 503120), (494, 423680), (512, 408785), (520, 402496), (608, 344240), (640, 327028), (662, 316160), (760, 275392), (832, 251560), (988, 211840), (1040, 201248), (1216, 172120), (1235, 169472), (1280, 163514), (1324, 158080), (1520, 137696), (1655, 126464), (1664, 125780), (1976, 105920), (2080, 100624), (2432, 86060), (2470, 84736), (2560, 81757), (2648, 79040), (3040, 68848), (3310, 63232), (3328, 62890), (3952, 52960), (4160, 50312), (4303, 48640), (4864, 43030), (4940, 42368), (5296, 39520), (6080, 34424), (6289, 33280), (6620, 31616), (6656, 31445), (7904, 26480), (8320, 25156), (8606, 24320), (9728, 21515), (9880, 21184), (10592, 19760), (12160, 17212), (12578, 16640), (13240, 15808)]