64334020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{313}}^1$

素因数の和:604

約数の個数: 48

約数和(自身を含む): 139265280

約数和(自身を除く): 74931260

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 239, 313, 430, 478, 626, 860, 956, 1195, 1252, 1565, 2390, 3130, 4780, 6260, 10277, 13459, 20554, 26918, 41108, 51385, 53836, 67295, 74807, 102770, 134590, 149614, 205540, 269180, 299228, 374035, 748070, 1496140, 3216701, 6433402, 12866804, 16083505, 32167010, 64334020]

約数ペア:

[(1, 64334020), (2, 32167010), (4, 16083505), (5, 12866804), (10, 6433402), (20, 3216701), (43, 1496140), (86, 748070), (172, 374035), (215, 299228), (239, 269180), (313, 205540), (430, 149614), (478, 134590), (626, 102770), (860, 74807), (956, 67295), (1195, 53836), (1252, 51385), (1565, 41108), (2390, 26918), (3130, 20554), (4780, 13459), (6260, 10277)]