268697910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{688969}}^1$

素因数の和:688992

約数の個数: 32

約数和(自身を含む): 694481760

約数和(自身を除く): 425783850

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 688969, 1377938, 2066907, 3444845, 4133814, 6889690, 8956597, 10334535, 17913194, 20669070, 26869791, 44782985, 53739582, 89565970, 134348955, 268697910]

約数ペア:

[(1, 268697910), (2, 134348955), (3, 89565970), (5, 53739582), (6, 44782985), (10, 26869791), (13, 20669070), (15, 17913194), (26, 10334535), (30, 8956597), (39, 6889690), (65, 4133814), (78, 3444845), (130, 2066907), (195, 1377938), (390, 688969)]