1277920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{163}}^1$

素因数の和:192

約数の個数: 72

約数和(自身を含む): 3533544

約数和(自身を除く): 2255624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 163, 196, 224, 245, 280, 326, 392, 490, 560, 652, 784, 815, 980, 1120, 1141, 1304, 1568, 1630, 1960, 2282, 2608, 3260, 3920, 4564, 5216, 5705, 6520, 7840, 7987, 9128, 11410, 13040, 15974, 18256, 22820, 26080, 31948, 36512, 39935, 45640, 63896, 79870, 91280, 127792, 159740, 182560, 255584, 319480, 638960, 1277920]

約数ペア:

[(1, 1277920), (2, 638960), (4, 319480), (5, 255584), (7, 182560), (8, 159740), (10, 127792), (14, 91280), (16, 79870), (20, 63896), (28, 45640), (32, 39935), (35, 36512), (40, 31948), (49, 26080), (56, 22820), (70, 18256), (80, 15974), (98, 13040), (112, 11410), (140, 9128), (160, 7987), (163, 7840), (196, 6520), (224, 5705), (245, 5216), (280, 4564), (326, 3920), (392, 3260), (490, 2608), (560, 2282), (652, 1960), (784, 1630), (815, 1568), (980, 1304), (1120, 1141)]