56412980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{216973}}^1$

素因数の和:216995

約数の個数: 24

約数和(自身を含む): 127580712

約数和(自身を除く): 71167732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 216973, 433946, 867892, 1084865, 2169730, 2820649, 4339460, 5641298, 11282596, 14103245, 28206490, 56412980]

約数ペア:

[(1, 56412980), (2, 28206490), (4, 14103245), (5, 11282596), (10, 5641298), (13, 4339460), (20, 2820649), (26, 2169730), (52, 1084865), (65, 867892), (130, 433946), (260, 216973)]