209203480

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{251}}^1\times {\mathrm{311}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 481178880

約数和(自身を除く): 271975400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 251, 268, 311, 335, 502, 536, 622, 670, 1004, 1244, 1255, 1340, 1555, 2008, 2488, 2510, 2680, 3110, 5020, 6220, 10040, 12440, 16817, 20837, 33634, 41674, 67268, 78061, 83348, 84085, 104185, 134536, 156122, 166696, 168170, 208370, 312244, 336340, 390305, 416740, 624488, 672680, 780610, 833480, 1561220, 3122440, 5230087, 10460174, 20920348, 26150435, 41840696, 52300870, 104601740, 209203480]

約数ペア:

[(1, 209203480), (2, 104601740), (4, 52300870), (5, 41840696), (8, 26150435), (10, 20920348), (20, 10460174), (40, 5230087), (67, 3122440), (134, 1561220), (251, 833480), (268, 780610), (311, 672680), (335, 624488), (502, 416740), (536, 390305), (622, 336340), (670, 312244), (1004, 208370), (1244, 168170), (1255, 166696), (1340, 156122), (1555, 134536), (2008, 104185), (2488, 84085), (2510, 83348), (2680, 78061), (3110, 67268), (5020, 41674), (6220, 33634), (10040, 20837), (12440, 16817)]