28920315

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4931}}^1$

素因数の和:4979

約数の個数: 32

約数和(自身を含む): 51134976

約数和(自身を除く): 22214661

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 4931, 5865, 14793, 24655, 73965, 83827, 113413, 251481, 340239, 419135, 567065, 1257405, 1701195, 1928021, 5784063, 9640105, 28920315]

約数ペア:

[(1, 28920315), (3, 9640105), (5, 5784063), (15, 1928021), (17, 1701195), (23, 1257405), (51, 567065), (69, 419135), (85, 340239), (115, 251481), (255, 113413), (345, 83827), (391, 73965), (1173, 24655), (1955, 14793), (4931, 5865)]