18894568

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{829}}^1$

素因数の和:890

約数の個数: 64

約数和(自身を含む): 45417600

約数和(自身を除く): 26523032

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 37, 44, 56, 74, 77, 88, 148, 154, 259, 296, 308, 407, 518, 616, 814, 829, 1036, 1628, 1658, 2072, 2849, 3256, 3316, 5698, 5803, 6632, 9119, 11396, 11606, 18238, 22792, 23212, 30673, 36476, 46424, 61346, 63833, 72952, 122692, 127666, 214711, 245384, 255332, 337403, 429422, 510664, 674806, 858844, 1349612, 1717688, 2361821, 2699224, 4723642, 9447284, 18894568]

約数ペア:

[(1, 18894568), (2, 9447284), (4, 4723642), (7, 2699224), (8, 2361821), (11, 1717688), (14, 1349612), (22, 858844), (28, 674806), (37, 510664), (44, 429422), (56, 337403), (74, 255332), (77, 245384), (88, 214711), (148, 127666), (154, 122692), (259, 72952), (296, 63833), (308, 61346), (407, 46424), (518, 36476), (616, 30673), (814, 23212), (829, 22792), (1036, 18238), (1628, 11606), (1658, 11396), (2072, 9119), (2849, 6632), (3256, 5803), (3316, 5698)]