20786600

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{53}}^2$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 50589210

約数和(自身を除く): 29802610

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 53, 74, 100, 106, 148, 185, 200, 212, 265, 296, 370, 424, 530, 740, 925, 1060, 1325, 1480, 1850, 1961, 2120, 2650, 2809, 3700, 3922, 5300, 5618, 7400, 7844, 9805, 10600, 11236, 14045, 15688, 19610, 22472, 28090, 39220, 49025, 56180, 70225, 78440, 98050, 103933, 112360, 140450, 196100, 207866, 280900, 392200, 415732, 519665, 561800, 831464, 1039330, 2078660, 2598325, 4157320, 5196650, 10393300, 20786600]

約数ペア:

[(1, 20786600), (2, 10393300), (4, 5196650), (5, 4157320), (8, 2598325), (10, 2078660), (20, 1039330), (25, 831464), (37, 561800), (40, 519665), (50, 415732), (53, 392200), (74, 280900), (100, 207866), (106, 196100), (148, 140450), (185, 112360), (200, 103933), (212, 98050), (265, 78440), (296, 70225), (370, 56180), (424, 49025), (530, 39220), (740, 28090), (925, 22472), (1060, 19610), (1325, 15688), (1480, 14045), (1850, 11236), (1961, 10600), (2120, 9805), (2650, 7844), (2809, 7400), (3700, 5618), (3922, 5300)]