81880064

素因数分解:

$2^{10}\times 7^1\times {\mathrm{11423}}^1$

素因数の和:11450

約数の個数: 44

約数和(自身を含む): 187079424

約数和(自身を除く): 105199360

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1792, 3584, 7168, 11423, 22846, 45692, 79961, 91384, 159922, 182768, 319844, 365536, 639688, 731072, 1279376, 1462144, 2558752, 2924288, 5117504, 5848576, 10235008, 11697152, 20470016, 40940032, 81880064]

約数ペア:

[(1, 81880064), (2, 40940032), (4, 20470016), (7, 11697152), (8, 10235008), (14, 5848576), (16, 5117504), (28, 2924288), (32, 2558752), (56, 1462144), (64, 1279376), (112, 731072), (128, 639688), (224, 365536), (256, 319844), (448, 182768), (512, 159922), (896, 91384), (1024, 79961), (1792, 45692), (3584, 22846), (7168, 11423)]