20766840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2837}}^1$

素因数の和:2912

約数の個数: 64

約数和(自身を含む): 63344160

約数和(自身を除く): 42577320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2440, 2837, 3660, 5674, 7320, 8511, 11348, 14185, 17022, 22696, 28370, 34044, 42555, 56740, 68088, 85110, 113480, 170220, 173057, 340440, 346114, 519171, 692228, 865285, 1038342, 1384456, 1730570, 2076684, 2595855, 3461140, 4153368, 5191710, 6922280, 10383420, 20766840]

約数ペア:

[(1, 20766840), (2, 10383420), (3, 6922280), (4, 5191710), (5, 4153368), (6, 3461140), (8, 2595855), (10, 2076684), (12, 1730570), (15, 1384456), (20, 1038342), (24, 865285), (30, 692228), (40, 519171), (60, 346114), (61, 340440), (120, 173057), (122, 170220), (183, 113480), (244, 85110), (305, 68088), (366, 56740), (488, 42555), (610, 34044), (732, 28370), (915, 22696), (1220, 17022), (1464, 14185), (1830, 11348), (2440, 8511), (2837, 7320), (3660, 5674)]