16820055

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 36590400

約数和(自身を除く): 19770345

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 35, 45, 51, 63, 81, 85, 105, 119, 135, 153, 189, 255, 315, 349, 357, 405, 459, 567, 595, 765, 945, 1047, 1071, 1377, 1745, 1785, 2295, 2443, 2835, 3141, 3213, 5235, 5355, 5933, 6885, 7329, 9423, 9639, 12215, 15705, 16065, 17799, 21987, 28269, 29665, 36645, 41531, 47115, 48195, 53397, 65961, 88995, 109935, 124593, 141345, 160191, 197883, 207655, 266985, 329805, 373779, 480573, 622965, 800955, 989415, 1121337, 1868895, 2402865, 3364011, 5606685, 16820055]

約数ペア:

[(1, 16820055), (3, 5606685), (5, 3364011), (7, 2402865), (9, 1868895), (15, 1121337), (17, 989415), (21, 800955), (27, 622965), (35, 480573), (45, 373779), (51, 329805), (63, 266985), (81, 207655), (85, 197883), (105, 160191), (119, 141345), (135, 124593), (153, 109935), (189, 88995), (255, 65961), (315, 53397), (349, 48195), (357, 47115), (405, 41531), (459, 36645), (567, 29665), (595, 28269), (765, 21987), (945, 17799), (1047, 16065), (1071, 15705), (1377, 12215), (1745, 9639), (1785, 9423), (2295, 7329), (2443, 6885), (2835, 5933), (3141, 5355), (3213, 5235)]