808214980

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1\times {\mathrm{1229}}^1$

素因数の和:1620

約数の個数: 48

約数和(自身を含む): 1718418240

約数和(自身を除く): 910203260

約数列:

[1, 2, 4, 5, 10, 20, 131, 251, 262, 502, 524, 655, 1004, 1229, 1255, 1310, 2458, 2510, 2620, 4916, 5020, 6145, 12290, 24580, 32881, 65762, 131524, 160999, 164405, 308479, 321998, 328810, 616958, 643996, 657620, 804995, 1233916, 1542395, 1609990, 3084790, 3219980, 6169580, 40410749, 80821498, 161642996, 202053745, 404107490, 808214980]

約数ペア:

[(1, 808214980), (2, 404107490), (4, 202053745), (5, 161642996), (10, 80821498), (20, 40410749), (131, 6169580), (251, 3219980), (262, 3084790), (502, 1609990), (524, 1542395), (655, 1233916), (1004, 804995), (1229, 657620), (1255, 643996), (1310, 616958), (2458, 328810), (2510, 321998), (2620, 308479), (4916, 164405), (5020, 160999), (6145, 131524), (12290, 65762), (24580, 32881)]