39720640

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 112

約数和(自身を含む): 102412800

約数和(自身を除く): 62692160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 47, 64, 76, 80, 94, 95, 139, 152, 160, 188, 190, 235, 278, 304, 320, 376, 380, 470, 556, 608, 695, 752, 760, 893, 940, 1112, 1216, 1390, 1504, 1520, 1786, 1880, 2224, 2641, 2780, 3008, 3040, 3572, 3760, 4448, 4465, 5282, 5560, 6080, 6533, 7144, 7520, 8896, 8930, 10564, 11120, 13066, 13205, 14288, 15040, 17860, 21128, 22240, 26132, 26410, 28576, 32665, 35720, 42256, 44480, 52264, 52820, 57152, 65330, 71440, 84512, 104528, 105640, 124127, 130660, 142880, 169024, 209056, 211280, 248254, 261320, 285760, 418112, 422560, 496508, 522640, 620635, 845120, 993016, 1045280, 1241270, 1986032, 2090560, 2482540, 3972064, 4965080, 7944128, 9930160, 19860320, 39720640]

約数ペア:

[(1, 39720640), (2, 19860320), (4, 9930160), (5, 7944128), (8, 4965080), (10, 3972064), (16, 2482540), (19, 2090560), (20, 1986032), (32, 1241270), (38, 1045280), (40, 993016), (47, 845120), (64, 620635), (76, 522640), (80, 496508), (94, 422560), (95, 418112), (139, 285760), (152, 261320), (160, 248254), (188, 211280), (190, 209056), (235, 169024), (278, 142880), (304, 130660), (320, 124127), (376, 105640), (380, 104528), (470, 84512), (556, 71440), (608, 65330), (695, 57152), (752, 52820), (760, 52264), (893, 44480), (940, 42256), (1112, 35720), (1216, 32665), (1390, 28576), (1504, 26410), (1520, 26132), (1786, 22240), (1880, 21128), (2224, 17860), (2641, 15040), (2780, 14288), (3008, 13205), (3040, 13066), (3572, 11120), (3760, 10564), (4448, 8930), (4465, 8896), (5282, 7520), (5560, 7144), (6080, 6533)]