209720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{107}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 554040

約数和(自身を除く): 344320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 107, 140, 196, 214, 245, 280, 392, 428, 490, 535, 749, 856, 980, 1070, 1498, 1960, 2140, 2996, 3745, 4280, 5243, 5992, 7490, 10486, 14980, 20972, 26215, 29960, 41944, 52430, 104860, 209720]

約数ペア:

[(1, 209720), (2, 104860), (4, 52430), (5, 41944), (7, 29960), (8, 26215), (10, 20972), (14, 14980), (20, 10486), (28, 7490), (35, 5992), (40, 5243), (49, 4280), (56, 3745), (70, 2996), (98, 2140), (107, 1960), (140, 1498), (196, 1070), (214, 980), (245, 856), (280, 749), (392, 535), (428, 490)]