28005068

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{379}}^1$

素因数の和:439

約数の個数: 72

約数和(自身を含む): 63680400

約数和(自身を除く): 35675332

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 49, 52, 58, 91, 98, 116, 182, 196, 203, 364, 377, 379, 406, 637, 754, 758, 812, 1274, 1421, 1508, 1516, 2548, 2639, 2653, 2842, 4927, 5278, 5306, 5684, 9854, 10556, 10612, 10991, 18473, 18571, 19708, 21982, 34489, 36946, 37142, 43964, 68978, 73892, 74284, 76937, 137956, 142883, 153874, 241423, 285766, 307748, 482846, 538559, 571532, 965692, 1000181, 1077118, 2000362, 2154236, 4000724, 7001267, 14002534, 28005068]

約数ペア:

[(1, 28005068), (2, 14002534), (4, 7001267), (7, 4000724), (13, 2154236), (14, 2000362), (26, 1077118), (28, 1000181), (29, 965692), (49, 571532), (52, 538559), (58, 482846), (91, 307748), (98, 285766), (116, 241423), (182, 153874), (196, 142883), (203, 137956), (364, 76937), (377, 74284), (379, 73892), (406, 68978), (637, 43964), (754, 37142), (758, 36946), (812, 34489), (1274, 21982), (1421, 19708), (1508, 18571), (1516, 18473), (2548, 10991), (2639, 10612), (2653, 10556), (2842, 9854), (4927, 5684), (5278, 5306)]