808220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 2032128

約数和(自身を除く): 1223908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 251, 322, 460, 502, 644, 805, 1004, 1255, 1610, 1757, 2510, 3220, 3514, 5020, 5773, 7028, 8785, 11546, 17570, 23092, 28865, 35140, 40411, 57730, 80822, 115460, 161644, 202055, 404110, 808220]

約数ペア:

[(1, 808220), (2, 404110), (4, 202055), (5, 161644), (7, 115460), (10, 80822), (14, 57730), (20, 40411), (23, 35140), (28, 28865), (35, 23092), (46, 17570), (70, 11546), (92, 8785), (115, 7028), (140, 5773), (161, 5020), (230, 3514), (251, 3220), (322, 2510), (460, 1757), (502, 1610), (644, 1255), (805, 1004)]