163440256

素因数分解:

$2^7\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2309}}^1$

素因数の和:2409

約数の個数: 64

約数和(自身を含む): 376992000

約数和(自身を除く): 213551744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 79, 112, 128, 158, 224, 316, 448, 553, 632, 896, 1106, 1264, 2212, 2309, 2528, 4424, 4618, 5056, 8848, 9236, 10112, 16163, 17696, 18472, 32326, 35392, 36944, 64652, 70784, 73888, 129304, 147776, 182411, 258608, 295552, 364822, 517216, 729644, 1034432, 1276877, 1459288, 2068864, 2553754, 2918576, 5107508, 5837152, 10215016, 11674304, 20430032, 23348608, 40860064, 81720128, 163440256]

約数ペア:

[(1, 163440256), (2, 81720128), (4, 40860064), (7, 23348608), (8, 20430032), (14, 11674304), (16, 10215016), (28, 5837152), (32, 5107508), (56, 2918576), (64, 2553754), (79, 2068864), (112, 1459288), (128, 1276877), (158, 1034432), (224, 729644), (316, 517216), (448, 364822), (553, 295552), (632, 258608), (896, 182411), (1106, 147776), (1264, 129304), (2212, 73888), (2309, 70784), (2528, 64652), (4424, 36944), (4618, 35392), (5056, 32326), (8848, 18472), (9236, 17696), (10112, 16163)]