20783600

素因数分解:

$2^4\times 5^2\times {\mathrm{223}}^1\times {\mathrm{233}}^1$

素因数の和:474

約数の個数: 60

約数和(自身を含む): 50371776

約数和(自身を除く): 29588176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 223, 233, 400, 446, 466, 892, 932, 1115, 1165, 1784, 1864, 2230, 2330, 3568, 3728, 4460, 4660, 5575, 5825, 8920, 9320, 11150, 11650, 17840, 18640, 22300, 23300, 44600, 46600, 51959, 89200, 93200, 103918, 207836, 259795, 415672, 519590, 831344, 1039180, 1298975, 2078360, 2597950, 4156720, 5195900, 10391800, 20783600]

約数ペア:

[(1, 20783600), (2, 10391800), (4, 5195900), (5, 4156720), (8, 2597950), (10, 2078360), (16, 1298975), (20, 1039180), (25, 831344), (40, 519590), (50, 415672), (80, 259795), (100, 207836), (200, 103918), (223, 93200), (233, 89200), (400, 51959), (446, 46600), (466, 44600), (892, 23300), (932, 22300), (1115, 18640), (1165, 17840), (1784, 11650), (1864, 11150), (2230, 9320), (2330, 8920), (3568, 5825), (3728, 5575), (4460, 4660)]