20771192

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 44452800

約数和(自身を除く): 23681608

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 71, 97, 104, 116, 142, 194, 232, 284, 377, 388, 568, 754, 776, 923, 1261, 1508, 1846, 2059, 2522, 2813, 3016, 3692, 4118, 5044, 5626, 6887, 7384, 8236, 10088, 11252, 13774, 16472, 22504, 26767, 27548, 36569, 53534, 55096, 73138, 89531, 107068, 146276, 179062, 199723, 214136, 292552, 358124, 399446, 716248, 798892, 1597784, 2596399, 5192798, 10385596, 20771192]

約数ペア:

[(1, 20771192), (2, 10385596), (4, 5192798), (8, 2596399), (13, 1597784), (26, 798892), (29, 716248), (52, 399446), (58, 358124), (71, 292552), (97, 214136), (104, 199723), (116, 179062), (142, 146276), (194, 107068), (232, 89531), (284, 73138), (377, 55096), (388, 53534), (568, 36569), (754, 27548), (776, 26767), (923, 22504), (1261, 16472), (1508, 13774), (1846, 11252), (2059, 10088), (2522, 8236), (2813, 7384), (3016, 6887), (3692, 5626), (4118, 5044)]