4100840

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{653}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 9299880

約数和(自身を除く): 5199040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 653, 785, 1256, 1306, 1570, 2612, 3140, 3265, 5224, 6280, 6530, 13060, 26120, 102521, 205042, 410084, 512605, 820168, 1025210, 2050420, 4100840]

約数ペア:

[(1, 4100840), (2, 2050420), (4, 1025210), (5, 820168), (8, 512605), (10, 410084), (20, 205042), (40, 102521), (157, 26120), (314, 13060), (628, 6530), (653, 6280), (785, 5224), (1256, 3265), (1306, 3140), (1570, 2612)]