391411456

素因数分解:

$2^8\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:158

約数の個数: 108

約数和(自身を含む): 848411256

約数和(自身を除く): 456999800

約数列:

[1, 2, 4, 8, 16, 31, 32, 37, 43, 62, 64, 74, 86, 124, 128, 148, 172, 248, 256, 296, 344, 496, 592, 688, 961, 992, 1147, 1184, 1333, 1376, 1591, 1922, 1984, 2294, 2368, 2666, 2752, 3182, 3844, 3968, 4588, 4736, 5332, 5504, 6364, 7688, 7936, 9176, 9472, 10664, 11008, 12728, 15376, 18352, 21328, 25456, 30752, 35557, 36704, 41323, 42656, 49321, 50912, 61504, 71114, 73408, 82646, 85312, 98642, 101824, 123008, 142228, 146816, 165292, 170624, 197284, 203648, 246016, 284456, 293632, 330584, 341248, 394568, 407296, 568912, 661168, 789136, 1137824, 1322336, 1528951, 1578272, 2275648, 2644672, 3057902, 3156544, 4551296, 5289344, 6115804, 6313088, 9102592, 10578688, 12231608, 12626176, 24463216, 48926432, 97852864, 195705728, 391411456]

約数ペア:

[(1, 391411456), (2, 195705728), (4, 97852864), (8, 48926432), (16, 24463216), (31, 12626176), (32, 12231608), (37, 10578688), (43, 9102592), (62, 6313088), (64, 6115804), (74, 5289344), (86, 4551296), (124, 3156544), (128, 3057902), (148, 2644672), (172, 2275648), (248, 1578272), (256, 1528951), (296, 1322336), (344, 1137824), (496, 789136), (592, 661168), (688, 568912), (961, 407296), (992, 394568), (1147, 341248), (1184, 330584), (1333, 293632), (1376, 284456), (1591, 246016), (1922, 203648), (1984, 197284), (2294, 170624), (2368, 165292), (2666, 146816), (2752, 142228), (3182, 123008), (3844, 101824), (3968, 98642), (4588, 85312), (4736, 82646), (5332, 73408), (5504, 71114), (6364, 61504), (7688, 50912), (7936, 49321), (9176, 42656), (9472, 41323), (10664, 36704), (11008, 35557), (12728, 30752), (15376, 25456), (18352, 21328)]