8991080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{197}}^1$

素因数の和:378

約数の個数: 64

約数和(自身を含む): 23379840

約数和(自身を除く): 14388760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 163, 197, 280, 326, 394, 652, 788, 815, 985, 1141, 1304, 1379, 1576, 1630, 1970, 2282, 2758, 3260, 3940, 4564, 5516, 5705, 6520, 6895, 7880, 9128, 11032, 11410, 13790, 22820, 27580, 32111, 45640, 55160, 64222, 128444, 160555, 224777, 256888, 321110, 449554, 642220, 899108, 1123885, 1284440, 1798216, 2247770, 4495540, 8991080]

約数ペア:

[(1, 8991080), (2, 4495540), (4, 2247770), (5, 1798216), (7, 1284440), (8, 1123885), (10, 899108), (14, 642220), (20, 449554), (28, 321110), (35, 256888), (40, 224777), (56, 160555), (70, 128444), (140, 64222), (163, 55160), (197, 45640), (280, 32111), (326, 27580), (394, 22820), (652, 13790), (788, 11410), (815, 11032), (985, 9128), (1141, 7880), (1304, 6895), (1379, 6520), (1576, 5705), (1630, 5516), (1970, 4564), (2282, 3940), (2758, 3260)]