668149744

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{463}}^1$

素因数の和:638

約数の個数: 80

約数和(自身を含む): 1408481280

約数和(自身を除く): 740331536

約数列:

[1, 2, 4, 8, 16, 19, 38, 47, 76, 94, 101, 152, 188, 202, 304, 376, 404, 463, 752, 808, 893, 926, 1616, 1786, 1852, 1919, 3572, 3704, 3838, 4747, 7144, 7408, 7676, 8797, 9494, 14288, 15352, 17594, 18988, 21761, 30704, 35188, 37976, 43522, 46763, 70376, 75952, 87044, 90193, 93526, 140752, 174088, 180386, 187052, 348176, 360772, 374104, 413459, 721544, 748208, 826918, 888497, 1443088, 1653836, 1776994, 2197861, 3307672, 3553988, 4395722, 6615344, 7107976, 8791444, 14215952, 17582888, 35165776, 41759359, 83518718, 167037436, 334074872, 668149744]

約数ペア:

[(1, 668149744), (2, 334074872), (4, 167037436), (8, 83518718), (16, 41759359), (19, 35165776), (38, 17582888), (47, 14215952), (76, 8791444), (94, 7107976), (101, 6615344), (152, 4395722), (188, 3553988), (202, 3307672), (304, 2197861), (376, 1776994), (404, 1653836), (463, 1443088), (752, 888497), (808, 826918), (893, 748208), (926, 721544), (1616, 413459), (1786, 374104), (1852, 360772), (1919, 348176), (3572, 187052), (3704, 180386), (3838, 174088), (4747, 140752), (7144, 93526), (7408, 90193), (7676, 87044), (8797, 75952), (9494, 70376), (14288, 46763), (15352, 43522), (17594, 37976), (18988, 35188), (21761, 30704)]