281751808

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2731}}^1$

素因数の和:2791

約数の個数: 72

約数和(自身を含む): 625431296

約数和(自身を除く): 343679488

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 256, 403, 416, 496, 806, 832, 992, 1612, 1664, 1984, 2731, 3224, 3328, 3968, 5462, 6448, 7936, 10924, 12896, 21848, 25792, 35503, 43696, 51584, 71006, 84661, 87392, 103168, 142012, 169322, 174784, 284024, 338644, 349568, 568048, 677288, 699136, 1100593, 1136096, 1354576, 2201186, 2272192, 2709152, 4402372, 4544384, 5418304, 8804744, 9088768, 10836608, 17609488, 21673216, 35218976, 70437952, 140875904, 281751808]

約数ペア:

[(1, 281751808), (2, 140875904), (4, 70437952), (8, 35218976), (13, 21673216), (16, 17609488), (26, 10836608), (31, 9088768), (32, 8804744), (52, 5418304), (62, 4544384), (64, 4402372), (104, 2709152), (124, 2272192), (128, 2201186), (208, 1354576), (248, 1136096), (256, 1100593), (403, 699136), (416, 677288), (496, 568048), (806, 349568), (832, 338644), (992, 284024), (1612, 174784), (1664, 169322), (1984, 142012), (2731, 103168), (3224, 87392), (3328, 84661), (3968, 71006), (5462, 51584), (6448, 43696), (7936, 35503), (10924, 25792), (12896, 21848)]