1640594540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{485383}}^1$

素因数の和:485418

約数の個数: 36

約数和(自身を含む): 3730661424

約数和(自身を除く): 2090066884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 485383, 970766, 1941532, 2426915, 4853830, 6309979, 9707660, 12619958, 25239916, 31549895, 63099790, 82029727, 126199580, 164059454, 328118908, 410148635, 820297270, 1640594540]

約数ペア:

[(1, 1640594540), (2, 820297270), (4, 410148635), (5, 328118908), (10, 164059454), (13, 126199580), (20, 82029727), (26, 63099790), (52, 31549895), (65, 25239916), (130, 12619958), (169, 9707660), (260, 6309979), (338, 4853830), (676, 2426915), (845, 1941532), (1690, 970766), (3380, 485383)]