19632440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11971}}^1$

素因数の和:12023

約数の個数: 32

約数和(自身を含む): 45254160

約数和(自身を除く): 25621720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11971, 23942, 47884, 59855, 95768, 119710, 239420, 478840, 490811, 981622, 1963244, 2454055, 3926488, 4908110, 9816220, 19632440]

約数ペア:

[(1, 19632440), (2, 9816220), (4, 4908110), (5, 3926488), (8, 2454055), (10, 1963244), (20, 981622), (40, 490811), (41, 478840), (82, 239420), (164, 119710), (205, 95768), (328, 59855), (410, 47884), (820, 23942), (1640, 11971)]