28057396245

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{263}}^1\times {\mathrm{919}}^1$

素因数の和:1370

約数の個数: 64

約数和(自身を含む): 46166630400

約数和(自身を除く): 18109234155

約数列:

[1, 3, 5, 15, 71, 109, 213, 263, 327, 355, 545, 789, 919, 1065, 1315, 1635, 2757, 3945, 4595, 7739, 13785, 18673, 23217, 28667, 38695, 56019, 65249, 86001, 93365, 100171, 116085, 143335, 195747, 241697, 280095, 300513, 326245, 430005, 500855, 725091, 978735, 1208485, 1502565, 2035357, 3625455, 6106071, 7112141, 10176785, 17160487, 21336423, 26344973, 30530355, 35560705, 51481461, 79034919, 85802435, 106682115, 131724865, 257407305, 395174595, 1870493083, 5611479249, 9352465415, 28057396245]

約数ペア:

[(1, 28057396245), (3, 9352465415), (5, 5611479249), (15, 1870493083), (71, 395174595), (109, 257407305), (213, 131724865), (263, 106682115), (327, 85802435), (355, 79034919), (545, 51481461), (789, 35560705), (919, 30530355), (1065, 26344973), (1315, 21336423), (1635, 17160487), (2757, 10176785), (3945, 7112141), (4595, 6106071), (7739, 3625455), (13785, 2035357), (18673, 1502565), (23217, 1208485), (28667, 978735), (38695, 725091), (56019, 500855), (65249, 430005), (86001, 326245), (93365, 300513), (100171, 280095), (116085, 241697), (143335, 195747)]