989701888

素因数分解:

$2^8\times 7^1\times {\mathrm{79}}^1\times {\mathrm{6991}}^1$

素因数の和:7093

約数の個数: 72

約数和(自身を含む): 2286663680

約数和(自身を除く): 1296961792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 79, 112, 128, 158, 224, 256, 316, 448, 553, 632, 896, 1106, 1264, 1792, 2212, 2528, 4424, 5056, 6991, 8848, 10112, 13982, 17696, 20224, 27964, 35392, 48937, 55928, 70784, 97874, 111856, 141568, 195748, 223712, 391496, 447424, 552289, 782992, 894848, 1104578, 1565984, 1789696, 2209156, 3131968, 3866023, 4418312, 6263936, 7732046, 8836624, 12527872, 15464092, 17673248, 30928184, 35346496, 61856368, 70692992, 123712736, 141385984, 247425472, 494850944, 989701888]

約数ペア:

[(1, 989701888), (2, 494850944), (4, 247425472), (7, 141385984), (8, 123712736), (14, 70692992), (16, 61856368), (28, 35346496), (32, 30928184), (56, 17673248), (64, 15464092), (79, 12527872), (112, 8836624), (128, 7732046), (158, 6263936), (224, 4418312), (256, 3866023), (316, 3131968), (448, 2209156), (553, 1789696), (632, 1565984), (896, 1104578), (1106, 894848), (1264, 782992), (1792, 552289), (2212, 447424), (2528, 391496), (4424, 223712), (5056, 195748), (6991, 141568), (8848, 111856), (10112, 97874), (13982, 70784), (17696, 55928), (20224, 48937), (27964, 35392)]