28759220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{205423}}^1$

素因数の和:205439

約数の個数: 24

約数和(自身を含む): 69022464

約数和(自身を除く): 40263244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 205423, 410846, 821692, 1027115, 1437961, 2054230, 2875922, 4108460, 5751844, 7189805, 14379610, 28759220]

約数ペア:

[(1, 28759220), (2, 14379610), (4, 7189805), (5, 5751844), (7, 4108460), (10, 2875922), (14, 2054230), (20, 1437961), (28, 1027115), (35, 821692), (70, 410846), (140, 205423)]