8686990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3517}}^1$

素因数の和:3556

約数の個数: 32

約数和(自身を含む): 17730720

約数和(自身を除く): 9043730

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 3517, 7034, 17585, 35170, 45721, 66823, 91442, 133646, 228605, 334115, 457210, 668230, 868699, 1737398, 4343495, 8686990]

約数ペア:

[(1, 8686990), (2, 4343495), (5, 1737398), (10, 868699), (13, 668230), (19, 457210), (26, 334115), (38, 228605), (65, 133646), (95, 91442), (130, 66823), (190, 45721), (247, 35170), (494, 17585), (1235, 7034), (2470, 3517)]