328778860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{5237}}^1$

素因数の和:5362

約数の個数: 48

約数和(自身を含む): 716306976

約数和(自身を除く): 387528116

約数列:

[1, 2, 4, 5, 10, 20, 43, 73, 86, 146, 172, 215, 292, 365, 430, 730, 860, 1460, 3139, 5237, 6278, 10474, 12556, 15695, 20948, 26185, 31390, 52370, 62780, 104740, 225191, 382301, 450382, 764602, 900764, 1125955, 1529204, 1911505, 2251910, 3823010, 4503820, 7646020, 16438943, 32877886, 65755772, 82194715, 164389430, 328778860]

約数ペア:

[(1, 328778860), (2, 164389430), (4, 82194715), (5, 65755772), (10, 32877886), (20, 16438943), (43, 7646020), (73, 4503820), (86, 3823010), (146, 2251910), (172, 1911505), (215, 1529204), (292, 1125955), (365, 900764), (430, 764602), (730, 450382), (860, 382301), (1460, 225191), (3139, 104740), (5237, 62780), (6278, 52370), (10474, 31390), (12556, 26185), (15695, 20948)]