220165820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{271}}^1\times {\mathrm{829}}^1$

素因数の和:1123

約数の個数: 72

約数和(自身を含む): 540469440

約数和(自身を除く): 320303620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 271, 490, 542, 829, 980, 1084, 1355, 1658, 1897, 2710, 3316, 3794, 4145, 5420, 5803, 7588, 8290, 9485, 11606, 13279, 16580, 18970, 23212, 26558, 29015, 37940, 40621, 53116, 58030, 66395, 81242, 116060, 132790, 162484, 203105, 224659, 265580, 406210, 449318, 812420, 898636, 1123295, 1572613, 2246590, 3145226, 4493180, 6290452, 7863065, 11008291, 15726130, 22016582, 31452260, 44033164, 55041455, 110082910, 220165820]

約数ペア:

[(1, 220165820), (2, 110082910), (4, 55041455), (5, 44033164), (7, 31452260), (10, 22016582), (14, 15726130), (20, 11008291), (28, 7863065), (35, 6290452), (49, 4493180), (70, 3145226), (98, 2246590), (140, 1572613), (196, 1123295), (245, 898636), (271, 812420), (490, 449318), (542, 406210), (829, 265580), (980, 224659), (1084, 203105), (1355, 162484), (1658, 132790), (1897, 116060), (2710, 81242), (3316, 66395), (3794, 58030), (4145, 53116), (5420, 40621), (5803, 37940), (7588, 29015), (8290, 26558), (9485, 23212), (11606, 18970), (13279, 16580)]