140508928

素因数分解:

$2^8\times 7^1\times {\mathrm{89}}^1\times {\mathrm{881}}^1$

素因数の和:993

約数の個数: 72

約数和(自身を含む): 324505440

約数和(自身を除く): 183996512

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 89, 112, 128, 178, 224, 256, 356, 448, 623, 712, 881, 896, 1246, 1424, 1762, 1792, 2492, 2848, 3524, 4984, 5696, 6167, 7048, 9968, 11392, 12334, 14096, 19936, 22784, 24668, 28192, 39872, 49336, 56384, 78409, 79744, 98672, 112768, 156818, 159488, 197344, 225536, 313636, 394688, 548863, 627272, 789376, 1097726, 1254544, 1578752, 2195452, 2509088, 4390904, 5018176, 8781808, 10036352, 17563616, 20072704, 35127232, 70254464, 140508928]

約数ペア:

[(1, 140508928), (2, 70254464), (4, 35127232), (7, 20072704), (8, 17563616), (14, 10036352), (16, 8781808), (28, 5018176), (32, 4390904), (56, 2509088), (64, 2195452), (89, 1578752), (112, 1254544), (128, 1097726), (178, 789376), (224, 627272), (256, 548863), (356, 394688), (448, 313636), (623, 225536), (712, 197344), (881, 159488), (896, 156818), (1246, 112768), (1424, 98672), (1762, 79744), (1792, 78409), (2492, 56384), (2848, 49336), (3524, 39872), (4984, 28192), (5696, 24668), (6167, 22784), (7048, 19936), (9968, 14096), (11392, 12334)]