278320055

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1\times {\mathrm{241}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 366717120

約数和(自身を除く): 88397065

約数列:

[1, 5, 13, 65, 109, 163, 241, 545, 815, 1205, 1417, 2119, 3133, 7085, 10595, 15665, 17767, 26269, 39283, 88835, 131345, 196415, 230971, 341497, 510679, 1154855, 1707485, 2553395, 4281847, 21409235, 55664011, 278320055]

約数ペア:

[(1, 278320055), (5, 55664011), (13, 21409235), (65, 4281847), (109, 2553395), (163, 1707485), (241, 1154855), (545, 510679), (815, 341497), (1205, 230971), (1417, 196415), (2119, 131345), (3133, 88835), (7085, 39283), (10595, 26269), (15665, 17767)]