28284920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37217}}^1$

素因数の和:37247

約数の個数: 32

約数和(自身を含む): 66992400

約数和(自身を除く): 38707480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 37217, 74434, 148868, 186085, 297736, 372170, 707123, 744340, 1414246, 1488680, 2828492, 3535615, 5656984, 7071230, 14142460, 28284920]

約数ペア:

[(1, 28284920), (2, 14142460), (4, 7071230), (5, 5656984), (8, 3535615), (10, 2828492), (19, 1488680), (20, 1414246), (38, 744340), (40, 707123), (76, 372170), (95, 297736), (152, 186085), (190, 148868), (380, 74434), (760, 37217)]