668836220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:495

約数の個数: 96

約数和(自身を含む): 1550767680

約数和(自身を除く): 881931460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 131, 146, 260, 262, 269, 292, 365, 524, 538, 655, 730, 949, 1076, 1310, 1345, 1460, 1703, 1898, 2620, 2690, 3406, 3497, 3796, 4745, 5380, 6812, 6994, 8515, 9490, 9563, 13988, 17030, 17485, 18980, 19126, 19637, 34060, 34970, 35239, 38252, 39274, 47815, 69940, 70478, 78548, 95630, 98185, 124319, 140956, 176195, 191260, 196370, 248638, 255281, 352390, 392740, 458107, 497276, 510562, 621595, 704780, 916214, 1021124, 1243190, 1276405, 1832428, 2290535, 2486380, 2552810, 2572447, 4581070, 5105620, 5144894, 9162140, 10289788, 12862235, 25724470, 33441811, 51448940, 66883622, 133767244, 167209055, 334418110, 668836220]

約数ペア:

[(1, 668836220), (2, 334418110), (4, 167209055), (5, 133767244), (10, 66883622), (13, 51448940), (20, 33441811), (26, 25724470), (52, 12862235), (65, 10289788), (73, 9162140), (130, 5144894), (131, 5105620), (146, 4581070), (260, 2572447), (262, 2552810), (269, 2486380), (292, 2290535), (365, 1832428), (524, 1276405), (538, 1243190), (655, 1021124), (730, 916214), (949, 704780), (1076, 621595), (1310, 510562), (1345, 497276), (1460, 458107), (1703, 392740), (1898, 352390), (2620, 255281), (2690, 248638), (3406, 196370), (3497, 191260), (3796, 176195), (4745, 140956), (5380, 124319), (6812, 98185), (6994, 95630), (8515, 78548), (9490, 70478), (9563, 69940), (13988, 47815), (17030, 39274), (17485, 38252), (18980, 35239), (19126, 34970), (19637, 34060)]