2019909080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{51899}}^1$

素因数の和:52056

約数の個数: 64

約数和(自身を含む): 5231520000

約数和(自身を除く): 3211610920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1112, 1390, 1946, 2780, 3892, 4865, 5560, 7784, 9730, 19460, 38920, 51899, 103798, 207596, 259495, 363293, 415192, 518990, 726586, 1037980, 1453172, 1816465, 2075960, 2906344, 3632930, 7213961, 7265860, 14427922, 14531720, 28855844, 36069805, 50497727, 57711688, 72139610, 100995454, 144279220, 201990908, 252488635, 288558440, 403981816, 504977270, 1009954540, 2019909080]

約数ペア:

[(1, 2019909080), (2, 1009954540), (4, 504977270), (5, 403981816), (7, 288558440), (8, 252488635), (10, 201990908), (14, 144279220), (20, 100995454), (28, 72139610), (35, 57711688), (40, 50497727), (56, 36069805), (70, 28855844), (139, 14531720), (140, 14427922), (278, 7265860), (280, 7213961), (556, 3632930), (695, 2906344), (973, 2075960), (1112, 1816465), (1390, 1453172), (1946, 1037980), (2780, 726586), (3892, 518990), (4865, 415192), (5560, 363293), (7784, 259495), (9730, 207596), (19460, 103798), (38920, 51899)]