788451320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:345

約数の個数: 128

約数和(自身を含む): 1900765440

約数和(自身を除く): 1112314120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 47, 53, 82, 94, 106, 164, 188, 193, 205, 212, 235, 265, 328, 376, 386, 410, 424, 470, 530, 772, 820, 940, 965, 1060, 1544, 1640, 1880, 1927, 1930, 2120, 2173, 2491, 3854, 3860, 4346, 4982, 7708, 7720, 7913, 8692, 9071, 9635, 9964, 10229, 10865, 12455, 15416, 15826, 17384, 18142, 19270, 19928, 20458, 21730, 24910, 31652, 36284, 38540, 39565, 40916, 43460, 45355, 49820, 51145, 63304, 72568, 77080, 79130, 81832, 86920, 90710, 99640, 102131, 102290, 158260, 181420, 204262, 204580, 316520, 362840, 371911, 408524, 409160, 419389, 480763, 510655, 743822, 817048, 838778, 961526, 1021310, 1487644, 1677556, 1859555, 1923052, 2042620, 2096945, 2403815, 2975288, 3355112, 3719110, 3846104, 4085240, 4193890, 4807630, 7438220, 8387780, 9615260, 14876440, 16775560, 19230520, 19711283, 39422566, 78845132, 98556415, 157690264, 197112830, 394225660, 788451320]

約数ペア:

[(1, 788451320), (2, 394225660), (4, 197112830), (5, 157690264), (8, 98556415), (10, 78845132), (20, 39422566), (40, 19711283), (41, 19230520), (47, 16775560), (53, 14876440), (82, 9615260), (94, 8387780), (106, 7438220), (164, 4807630), (188, 4193890), (193, 4085240), (205, 3846104), (212, 3719110), (235, 3355112), (265, 2975288), (328, 2403815), (376, 2096945), (386, 2042620), (410, 1923052), (424, 1859555), (470, 1677556), (530, 1487644), (772, 1021310), (820, 961526), (940, 838778), (965, 817048), (1060, 743822), (1544, 510655), (1640, 480763), (1880, 419389), (1927, 409160), (1930, 408524), (2120, 371911), (2173, 362840), (2491, 316520), (3854, 204580), (3860, 204262), (4346, 181420), (4982, 158260), (7708, 102290), (7720, 102131), (7913, 99640), (8692, 90710), (9071, 86920), (9635, 81832), (9964, 79130), (10229, 77080), (10865, 72568), (12455, 63304), (15416, 51145), (15826, 49820), (17384, 45355), (18142, 43460), (19270, 40916), (19928, 39565), (20458, 38540), (21730, 36284), (24910, 31652)]