128144128

素因数分解:

$2^8\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1663}}^1$

素因数の和:1729

約数の個数: 72

約数和(自身を含む): 299307008

約数和(自身を除く): 171162880

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 128, 172, 224, 256, 301, 344, 448, 602, 688, 896, 1204, 1376, 1663, 1792, 2408, 2752, 3326, 4816, 5504, 6652, 9632, 11008, 11641, 13304, 19264, 23282, 26608, 38528, 46564, 53216, 71509, 77056, 93128, 106432, 143018, 186256, 212864, 286036, 372512, 425728, 500563, 572072, 745024, 1001126, 1144144, 1490048, 2002252, 2288288, 2980096, 4004504, 4576576, 8009008, 9153152, 16018016, 18306304, 32036032, 64072064, 128144128]

約数ペア:

[(1, 128144128), (2, 64072064), (4, 32036032), (7, 18306304), (8, 16018016), (14, 9153152), (16, 8009008), (28, 4576576), (32, 4004504), (43, 2980096), (56, 2288288), (64, 2002252), (86, 1490048), (112, 1144144), (128, 1001126), (172, 745024), (224, 572072), (256, 500563), (301, 425728), (344, 372512), (448, 286036), (602, 212864), (688, 186256), (896, 143018), (1204, 106432), (1376, 93128), (1663, 77056), (1792, 71509), (2408, 53216), (2752, 46564), (3326, 38528), (4816, 26608), (5504, 23282), (6652, 19264), (9632, 13304), (11008, 11641)]