137492780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1\times {\mathrm{449}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 295293600

約数和(自身を除く): 157800820

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 251, 305, 449, 502, 610, 898, 1004, 1220, 1255, 1796, 2245, 2510, 4490, 5020, 8980, 15311, 27389, 30622, 54778, 61244, 76555, 109556, 112699, 136945, 153110, 225398, 273890, 306220, 450796, 547780, 563495, 1126990, 2253980, 6874639, 13749278, 27498556, 34373195, 68746390, 137492780]

約数ペア:

[(1, 137492780), (2, 68746390), (4, 34373195), (5, 27498556), (10, 13749278), (20, 6874639), (61, 2253980), (122, 1126990), (244, 563495), (251, 547780), (305, 450796), (449, 306220), (502, 273890), (610, 225398), (898, 153110), (1004, 136945), (1220, 112699), (1255, 109556), (1796, 76555), (2245, 61244), (2510, 54778), (4490, 30622), (5020, 27389), (8980, 15311)]