20489920

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5821}}^1$

素因数の和:5849

約数の個数: 56

約数和(自身を含む): 53236368

約数和(自身を除く): 32746448

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, 704, 880, 1760, 3520, 5821, 11642, 23284, 29105, 46568, 58210, 64031, 93136, 116420, 128062, 186272, 232840, 256124, 320155, 372544, 465680, 512248, 640310, 931360, 1024496, 1280620, 1862720, 2048992, 2561240, 4097984, 5122480, 10244960, 20489920]

約数ペア:

[(1, 20489920), (2, 10244960), (4, 5122480), (5, 4097984), (8, 2561240), (10, 2048992), (11, 1862720), (16, 1280620), (20, 1024496), (22, 931360), (32, 640310), (40, 512248), (44, 465680), (55, 372544), (64, 320155), (80, 256124), (88, 232840), (110, 186272), (160, 128062), (176, 116420), (220, 93136), (320, 64031), (352, 58210), (440, 46568), (704, 29105), (880, 23284), (1760, 11642), (3520, 5821)]