208887784

素因数分解:

$2^3\times 7^2\times {\mathrm{41}}^2\times {\mathrm{317}}^1$

素因数の和:419

約数の個数: 72

約数和(自身を含む): 468466470

約数和(自身を除く): 259578686

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 49, 56, 82, 98, 164, 196, 287, 317, 328, 392, 574, 634, 1148, 1268, 1681, 2009, 2219, 2296, 2536, 3362, 4018, 4438, 6724, 8036, 8876, 11767, 12997, 13448, 15533, 16072, 17752, 23534, 25994, 31066, 47068, 51988, 62132, 82369, 90979, 94136, 103976, 124264, 164738, 181958, 329476, 363916, 532877, 636853, 658952, 727832, 1065754, 1273706, 2131508, 2547412, 3730139, 4263016, 5094824, 7460278, 14920556, 26110973, 29841112, 52221946, 104443892, 208887784]

約数ペア:

[(1, 208887784), (2, 104443892), (4, 52221946), (7, 29841112), (8, 26110973), (14, 14920556), (28, 7460278), (41, 5094824), (49, 4263016), (56, 3730139), (82, 2547412), (98, 2131508), (164, 1273706), (196, 1065754), (287, 727832), (317, 658952), (328, 636853), (392, 532877), (574, 363916), (634, 329476), (1148, 181958), (1268, 164738), (1681, 124264), (2009, 103976), (2219, 94136), (2296, 90979), (2536, 82369), (3362, 62132), (4018, 51988), (4438, 47068), (6724, 31066), (8036, 25994), (8876, 23534), (11767, 17752), (12997, 16072), (13448, 15533)]