138981808

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{271}}^1$

素因数の和:546

約数の個数: 80

約数和(自身を含む): 326487040

約数和(自身を除く): 187505232

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 241, 266, 271, 304, 482, 532, 542, 964, 1064, 1084, 1687, 1897, 1928, 2128, 2168, 3374, 3794, 3856, 4336, 4579, 5149, 6748, 7588, 9158, 10298, 13496, 15176, 18316, 20596, 26992, 30352, 32053, 36043, 36632, 41192, 64106, 65311, 72086, 73264, 82384, 128212, 130622, 144172, 256424, 261244, 288344, 457177, 512848, 522488, 576688, 914354, 1044976, 1240909, 1828708, 2481818, 3657416, 4963636, 7314832, 8686363, 9927272, 17372726, 19854544, 34745452, 69490904, 138981808]

約数ペア:

[(1, 138981808), (2, 69490904), (4, 34745452), (7, 19854544), (8, 17372726), (14, 9927272), (16, 8686363), (19, 7314832), (28, 4963636), (38, 3657416), (56, 2481818), (76, 1828708), (112, 1240909), (133, 1044976), (152, 914354), (241, 576688), (266, 522488), (271, 512848), (304, 457177), (482, 288344), (532, 261244), (542, 256424), (964, 144172), (1064, 130622), (1084, 128212), (1687, 82384), (1897, 73264), (1928, 72086), (2128, 65311), (2168, 64106), (3374, 41192), (3794, 36632), (3856, 36043), (4336, 32053), (4579, 30352), (5149, 26992), (6748, 20596), (7588, 18316), (9158, 15176), (10298, 13496)]