643208

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:137

約数の個数: 32

約数和(自身を含む): 1292760

約数和(自身を除く): 649552

約数列:

[1, 2, 4, 8, 37, 41, 53, 74, 82, 106, 148, 164, 212, 296, 328, 424, 1517, 1961, 2173, 3034, 3922, 4346, 6068, 7844, 8692, 12136, 15688, 17384, 80401, 160802, 321604, 643208]

約数ペア:

[(1, 643208), (2, 321604), (4, 160802), (8, 80401), (37, 17384), (41, 15688), (53, 12136), (74, 8692), (82, 7844), (106, 6068), (148, 4346), (164, 3922), (212, 3034), (296, 2173), (328, 1961), (424, 1517)]