4019840

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{571}}^1$

素因数の和:601

約数の個数: 64

約数和(自身を含む): 10501920

約数和(自身を除く): 6482080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 571, 640, 704, 880, 1142, 1408, 1760, 2284, 2855, 3520, 4568, 5710, 6281, 7040, 9136, 11420, 12562, 18272, 22840, 25124, 31405, 36544, 45680, 50248, 62810, 73088, 91360, 100496, 125620, 182720, 200992, 251240, 365440, 401984, 502480, 803968, 1004960, 2009920, 4019840]

約数ペア:

[(1, 4019840), (2, 2009920), (4, 1004960), (5, 803968), (8, 502480), (10, 401984), (11, 365440), (16, 251240), (20, 200992), (22, 182720), (32, 125620), (40, 100496), (44, 91360), (55, 73088), (64, 62810), (80, 50248), (88, 45680), (110, 36544), (128, 31405), (160, 25124), (176, 22840), (220, 18272), (320, 12562), (352, 11420), (440, 9136), (571, 7040), (640, 6281), (704, 5710), (880, 4568), (1142, 3520), (1408, 2855), (1760, 2284)]