520455

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:195

約数の個数: 32

約数和(自身を含む): 955584

約数和(自身を除く): 435129

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 157, 195, 221, 255, 471, 663, 785, 1105, 2041, 2355, 2669, 3315, 6123, 8007, 10205, 13345, 30615, 34697, 40035, 104091, 173485, 520455]

約数ペア:

[(1, 520455), (3, 173485), (5, 104091), (13, 40035), (15, 34697), (17, 30615), (39, 13345), (51, 10205), (65, 8007), (85, 6123), (157, 3315), (195, 2669), (221, 2355), (255, 2041), (471, 1105), (663, 785)]