7857980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30223}}^1$

素因数の和:30245

約数の個数: 24

約数和(自身を含む): 17771712

約数和(自身を除く): 9913732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 30223, 60446, 120892, 151115, 302230, 392899, 604460, 785798, 1571596, 1964495, 3928990, 7857980]

約数ペア:

[(1, 7857980), (2, 3928990), (4, 1964495), (5, 1571596), (10, 785798), (13, 604460), (20, 392899), (26, 302230), (52, 151115), (65, 120892), (130, 60446), (260, 30223)]