1980580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:113

約数の個数: 72

約数和(自身を含む): 5056128

約数和(自身を除く): 3075548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 47, 49, 70, 86, 94, 98, 140, 172, 188, 196, 215, 235, 245, 301, 329, 430, 470, 490, 602, 658, 860, 940, 980, 1204, 1316, 1505, 1645, 2021, 2107, 2303, 3010, 3290, 4042, 4214, 4606, 6020, 6580, 8084, 8428, 9212, 10105, 10535, 11515, 14147, 20210, 21070, 23030, 28294, 40420, 42140, 46060, 56588, 70735, 99029, 141470, 198058, 282940, 396116, 495145, 990290, 1980580]

約数ペア:

[(1, 1980580), (2, 990290), (4, 495145), (5, 396116), (7, 282940), (10, 198058), (14, 141470), (20, 99029), (28, 70735), (35, 56588), (43, 46060), (47, 42140), (49, 40420), (70, 28294), (86, 23030), (94, 21070), (98, 20210), (140, 14147), (172, 11515), (188, 10535), (196, 10105), (215, 9212), (235, 8428), (245, 8084), (301, 6580), (329, 6020), (430, 4606), (470, 4214), (490, 4042), (602, 3290), (658, 3010), (860, 2303), (940, 2107), (980, 2021), (1204, 1645), (1316, 1505)]