389998972

素因数分解:

$2^2\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:224

約数の個数: 96

約数和(自身を含む): 826398720

約数和(自身を除く): 436399748

約数列:

[1, 2, 4, 11, 17, 22, 31, 34, 44, 62, 68, 121, 124, 139, 187, 242, 278, 341, 374, 484, 527, 556, 682, 748, 1054, 1331, 1364, 1529, 2057, 2108, 2363, 2662, 3058, 3751, 4114, 4309, 4726, 5324, 5797, 6116, 7502, 8228, 8618, 9452, 11594, 15004, 16819, 17236, 22627, 23188, 25993, 33638, 41261, 45254, 47399, 51986, 63767, 67276, 73253, 82522, 90508, 94798, 103972, 127534, 146506, 165044, 185009, 189596, 255068, 285923, 293012, 370018, 521389, 571846, 701437, 740036, 805783, 1042778, 1143692, 1402874, 1611566, 2085556, 2805748, 3145153, 3223132, 5735279, 6290306, 8863613, 11470558, 12580612, 17727226, 22941116, 35454452, 97499743, 194999486, 389998972]

約数ペア:

[(1, 389998972), (2, 194999486), (4, 97499743), (11, 35454452), (17, 22941116), (22, 17727226), (31, 12580612), (34, 11470558), (44, 8863613), (62, 6290306), (68, 5735279), (121, 3223132), (124, 3145153), (139, 2805748), (187, 2085556), (242, 1611566), (278, 1402874), (341, 1143692), (374, 1042778), (484, 805783), (527, 740036), (556, 701437), (682, 571846), (748, 521389), (1054, 370018), (1331, 293012), (1364, 285923), (1529, 255068), (2057, 189596), (2108, 185009), (2363, 165044), (2662, 146506), (3058, 127534), (3751, 103972), (4114, 94798), (4309, 90508), (4726, 82522), (5324, 73253), (5797, 67276), (6116, 63767), (7502, 51986), (8228, 47399), (8618, 45254), (9452, 41261), (11594, 33638), (15004, 25993), (16819, 23188), (17236, 22627)]