638040656

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:628

約数の個数: 80

約数和(自身を含む): 1381459200

約数和(自身を除く): 743418544

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 79, 88, 109, 158, 176, 218, 316, 421, 436, 632, 842, 869, 872, 1199, 1264, 1684, 1738, 1744, 2398, 3368, 3476, 4631, 4796, 6736, 6952, 8611, 9262, 9592, 13904, 17222, 18524, 19184, 33259, 34444, 37048, 45889, 66518, 68888, 74096, 91778, 94721, 133036, 137776, 183556, 189442, 266072, 365849, 367112, 378884, 504779, 532144, 731698, 734224, 757768, 1009558, 1463396, 1515536, 2019116, 2926792, 3625231, 4038232, 5853584, 7250462, 8076464, 14500924, 29001848, 39877541, 58003696, 79755082, 159510164, 319020328, 638040656]

約数ペア:

[(1, 638040656), (2, 319020328), (4, 159510164), (8, 79755082), (11, 58003696), (16, 39877541), (22, 29001848), (44, 14500924), (79, 8076464), (88, 7250462), (109, 5853584), (158, 4038232), (176, 3625231), (218, 2926792), (316, 2019116), (421, 1515536), (436, 1463396), (632, 1009558), (842, 757768), (869, 734224), (872, 731698), (1199, 532144), (1264, 504779), (1684, 378884), (1738, 367112), (1744, 365849), (2398, 266072), (3368, 189442), (3476, 183556), (4631, 137776), (4796, 133036), (6736, 94721), (6952, 91778), (8611, 74096), (9262, 68888), (9592, 66518), (13904, 45889), (17222, 37048), (18524, 34444), (19184, 33259)]