2009920

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{571}}^1$

素因数の和:599

約数の個数: 56

約数和(自身を含む): 5230368

約数和(自身を除く): 3220448

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 571, 704, 880, 1142, 1760, 2284, 2855, 3520, 4568, 5710, 6281, 9136, 11420, 12562, 18272, 22840, 25124, 31405, 36544, 45680, 50248, 62810, 91360, 100496, 125620, 182720, 200992, 251240, 401984, 502480, 1004960, 2009920]

約数ペア:

[(1, 2009920), (2, 1004960), (4, 502480), (5, 401984), (8, 251240), (10, 200992), (11, 182720), (16, 125620), (20, 100496), (22, 91360), (32, 62810), (40, 50248), (44, 45680), (55, 36544), (64, 31405), (80, 25124), (88, 22840), (110, 18272), (160, 12562), (176, 11420), (220, 9136), (320, 6281), (352, 5710), (440, 4568), (571, 3520), (704, 2855), (880, 2284), (1142, 1760)]