20300085

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:339

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 19616715

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 43, 45, 65, 117, 129, 135, 195, 215, 269, 351, 387, 559, 585, 645, 807, 1161, 1345, 1677, 1755, 1935, 2421, 2795, 3497, 4035, 5031, 5805, 7263, 8385, 10491, 11567, 12105, 15093, 17485, 25155, 31473, 34701, 36315, 52455, 57835, 75465, 94419, 104103, 150371, 157365, 173505, 312309, 451113, 472095, 520515, 751855, 1353339, 1561545, 2255565, 4060017, 6766695, 20300085]

約数ペア:

[(1, 20300085), (3, 6766695), (5, 4060017), (9, 2255565), (13, 1561545), (15, 1353339), (27, 751855), (39, 520515), (43, 472095), (45, 451113), (65, 312309), (117, 173505), (129, 157365), (135, 150371), (195, 104103), (215, 94419), (269, 75465), (351, 57835), (387, 52455), (559, 36315), (585, 34701), (645, 31473), (807, 25155), (1161, 17485), (1345, 15093), (1677, 12105), (1755, 11567), (1935, 10491), (2421, 8385), (2795, 7263), (3497, 5805), (4035, 5031)]