40642340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{887}}^1$

素因数の和:1004

約数の個数: 48

約数和(自身を含む): 89510400

約数和(自身を除く): 48868060

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 79, 116, 145, 158, 290, 316, 395, 580, 790, 887, 1580, 1774, 2291, 3548, 4435, 4582, 8870, 9164, 11455, 17740, 22910, 25723, 45820, 51446, 70073, 102892, 128615, 140146, 257230, 280292, 350365, 514460, 700730, 1401460, 2032117, 4064234, 8128468, 10160585, 20321170, 40642340]

約数ペア:

[(1, 40642340), (2, 20321170), (4, 10160585), (5, 8128468), (10, 4064234), (20, 2032117), (29, 1401460), (58, 700730), (79, 514460), (116, 350365), (145, 280292), (158, 257230), (290, 140146), (316, 128615), (395, 102892), (580, 70073), (790, 51446), (887, 45820), (1580, 25723), (1774, 22910), (2291, 17740), (3548, 11455), (4435, 9164), (4582, 8870)]