213202840

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{25261}}^1$

素因数の和:25483

約数の個数: 32

約数和(自身を含む): 481998960

約数和(自身を除く): 268796120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 25261, 50522, 101044, 126305, 202088, 252610, 505220, 1010440, 5330071, 10660142, 21320284, 26650355, 42640568, 53300710, 106601420, 213202840]

約数ペア:

[(1, 213202840), (2, 106601420), (4, 53300710), (5, 42640568), (8, 26650355), (10, 21320284), (20, 10660142), (40, 5330071), (211, 1010440), (422, 505220), (844, 252610), (1055, 202088), (1688, 126305), (2110, 101044), (4220, 50522), (8440, 25261)]