221258128

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1277}}^1$

素因数の和:1329

約数の個数: 120

約数和(自身を含む): 569072952

約数和(自身を除く): 347814824

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 49, 52, 56, 68, 91, 98, 104, 112, 119, 136, 182, 196, 208, 221, 238, 272, 364, 392, 442, 476, 637, 728, 784, 833, 884, 952, 1274, 1277, 1456, 1547, 1666, 1768, 1904, 2548, 2554, 3094, 3332, 3536, 5096, 5108, 6188, 6664, 8939, 10192, 10216, 10829, 12376, 13328, 16601, 17878, 20432, 21658, 21709, 24752, 33202, 35756, 43316, 43418, 62573, 66404, 71512, 86632, 86836, 116207, 125146, 132808, 143024, 151963, 173264, 173672, 232414, 250292, 265616, 282217, 303926, 347344, 464828, 500584, 564434, 607852, 813449, 929656, 1001168, 1063741, 1128868, 1215704, 1626898, 1859312, 1975519, 2127482, 2257736, 2431408, 3253796, 3951038, 4254964, 4515472, 6507592, 7902076, 8509928, 13015184, 13828633, 15804152, 17019856, 27657266, 31608304, 55314532, 110629064, 221258128]

約数ペア:

[(1, 221258128), (2, 110629064), (4, 55314532), (7, 31608304), (8, 27657266), (13, 17019856), (14, 15804152), (16, 13828633), (17, 13015184), (26, 8509928), (28, 7902076), (34, 6507592), (49, 4515472), (52, 4254964), (56, 3951038), (68, 3253796), (91, 2431408), (98, 2257736), (104, 2127482), (112, 1975519), (119, 1859312), (136, 1626898), (182, 1215704), (196, 1128868), (208, 1063741), (221, 1001168), (238, 929656), (272, 813449), (364, 607852), (392, 564434), (442, 500584), (476, 464828), (637, 347344), (728, 303926), (784, 282217), (833, 265616), (884, 250292), (952, 232414), (1274, 173672), (1277, 173264), (1456, 151963), (1547, 143024), (1666, 132808), (1768, 125146), (1904, 116207), (2548, 86836), (2554, 86632), (3094, 71512), (3332, 66404), (3536, 62573), (5096, 43418), (5108, 43316), (6188, 35756), (6664, 33202), (8939, 24752), (10192, 21709), (10216, 21658), (10829, 20432), (12376, 17878), (13328, 16601)]