642492

素因数分解:

$2^2\times 3^5\times {\mathrm{661}}^1$

素因数の和:680

約数の個数: 36

約数和(自身を含む): 1686776

約数和(自身を除く): 1044284

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 661, 972, 1322, 1983, 2644, 3966, 5949, 7932, 11898, 17847, 23796, 35694, 53541, 71388, 107082, 160623, 214164, 321246, 642492]

約数ペア:

[(1, 642492), (2, 321246), (3, 214164), (4, 160623), (6, 107082), (9, 71388), (12, 53541), (18, 35694), (27, 23796), (36, 17847), (54, 11898), (81, 7932), (108, 5949), (162, 3966), (243, 2644), (324, 1983), (486, 1322), (661, 972)]