220728928

素因数分解:

$2^5\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:313

約数の個数: 144

約数和(自身を含む): 551577600

約数和(自身を除く): 330848672

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 31, 32, 38, 49, 56, 62, 76, 98, 112, 124, 133, 152, 196, 217, 224, 239, 248, 266, 304, 392, 434, 478, 496, 532, 589, 608, 784, 868, 931, 956, 992, 1064, 1178, 1519, 1568, 1673, 1736, 1862, 1912, 2128, 2356, 3038, 3346, 3472, 3724, 3824, 4123, 4256, 4541, 4712, 6076, 6692, 6944, 7409, 7448, 7648, 8246, 9082, 9424, 11711, 12152, 13384, 14818, 14896, 16492, 18164, 18848, 23422, 24304, 26768, 28861, 29636, 29792, 31787, 32984, 36328, 46844, 48608, 51863, 53536, 57722, 59272, 63574, 65968, 72656, 93688, 103726, 115444, 118544, 127148, 131936, 140771, 145312, 187376, 207452, 222509, 230888, 237088, 254296, 281542, 363041, 374752, 414904, 445018, 461776, 508592, 563084, 726082, 829808, 890036, 923552, 985397, 1017184, 1126168, 1452164, 1659616, 1780072, 1970794, 2252336, 2904328, 3560144, 3941588, 4504672, 5808656, 6897779, 7120288, 7883176, 11617312, 13795558, 15766352, 27591116, 31532704, 55182232, 110364464, 220728928]

約数ペア:

[(1, 220728928), (2, 110364464), (4, 55182232), (7, 31532704), (8, 27591116), (14, 15766352), (16, 13795558), (19, 11617312), (28, 7883176), (31, 7120288), (32, 6897779), (38, 5808656), (49, 4504672), (56, 3941588), (62, 3560144), (76, 2904328), (98, 2252336), (112, 1970794), (124, 1780072), (133, 1659616), (152, 1452164), (196, 1126168), (217, 1017184), (224, 985397), (239, 923552), (248, 890036), (266, 829808), (304, 726082), (392, 563084), (434, 508592), (478, 461776), (496, 445018), (532, 414904), (589, 374752), (608, 363041), (784, 281542), (868, 254296), (931, 237088), (956, 230888), (992, 222509), (1064, 207452), (1178, 187376), (1519, 145312), (1568, 140771), (1673, 131936), (1736, 127148), (1862, 118544), (1912, 115444), (2128, 103726), (2356, 93688), (3038, 72656), (3346, 65968), (3472, 63574), (3724, 59272), (3824, 57722), (4123, 53536), (4256, 51863), (4541, 48608), (4712, 46844), (6076, 36328), (6692, 32984), (6944, 31787), (7409, 29792), (7448, 29636), (7648, 28861), (8246, 26768), (9082, 24304), (9424, 23422), (11711, 18848), (12152, 18164), (13384, 16492), (14818, 14896)]