20195568712

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{419}}^1\times {\mathrm{421}}^1\times {\mathrm{1301}}^1$

素因数の和:2158

約数の個数: 64

約数和(自身を含む): 41537966400

約数和(自身を除く): 21342397688

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 419, 421, 838, 842, 1301, 1676, 1684, 2602, 3352, 3368, 4609, 4631, 5204, 9218, 9262, 10408, 14311, 18436, 18524, 28622, 36872, 37048, 57244, 114488, 176399, 352798, 545119, 547721, 705596, 1090238, 1095442, 1411192, 1940389, 2180476, 2190884, 3880778, 4360952, 4381768, 5996309, 6024931, 7761556, 11992618, 12049862, 15523112, 23985236, 24099724, 47970472, 48199448, 229495099, 458990198, 917980396, 1835960792, 2524446089, 5048892178, 10097784356, 20195568712]

約数ペア:

[(1, 20195568712), (2, 10097784356), (4, 5048892178), (8, 2524446089), (11, 1835960792), (22, 917980396), (44, 458990198), (88, 229495099), (419, 48199448), (421, 47970472), (838, 24099724), (842, 23985236), (1301, 15523112), (1676, 12049862), (1684, 11992618), (2602, 7761556), (3352, 6024931), (3368, 5996309), (4609, 4381768), (4631, 4360952), (5204, 3880778), (9218, 2190884), (9262, 2180476), (10408, 1940389), (14311, 1411192), (18436, 1095442), (18524, 1090238), (28622, 705596), (36872, 547721), (37048, 545119), (57244, 352798), (114488, 176399)]