217872280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{147211}}^1$

素因数の和:147259

約数の個数: 32

約数和(自身を含む): 503465040

約数和(自身を除く): 285592760

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 147211, 294422, 588844, 736055, 1177688, 1472110, 2944220, 5446807, 5888440, 10893614, 21787228, 27234035, 43574456, 54468070, 108936140, 217872280]

約数ペア:

[(1, 217872280), (2, 108936140), (4, 54468070), (5, 43574456), (8, 27234035), (10, 21787228), (20, 10893614), (37, 5888440), (40, 5446807), (74, 2944220), (148, 1472110), (185, 1177688), (296, 736055), (370, 588844), (740, 294422), (1480, 147211)]