388431345

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{8681}}^1$

素因数の和:8865

約数の個数: 32

約数和(自身を含む): 658442880

約数和(自身を除く): 270011535

約数列:

[1, 3, 5, 15, 19, 57, 95, 157, 285, 471, 785, 2355, 2983, 8681, 8949, 14915, 26043, 43405, 44745, 130215, 164939, 494817, 824695, 1362917, 2474085, 4088751, 6814585, 20443755, 25895423, 77686269, 129477115, 388431345]

約数ペア:

[(1, 388431345), (3, 129477115), (5, 77686269), (15, 25895423), (19, 20443755), (57, 6814585), (95, 4088751), (157, 2474085), (285, 1362917), (471, 824695), (785, 494817), (2355, 164939), (2983, 130215), (8681, 44745), (8949, 43405), (14915, 26043)]