161177140

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1\times {\mathrm{331}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 344361024

約数和(自身を除く): 183183884

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 251, 331, 388, 485, 502, 662, 970, 1004, 1255, 1324, 1655, 1940, 2510, 3310, 5020, 6620, 24347, 32107, 48694, 64214, 83081, 97388, 121735, 128428, 160535, 166162, 243470, 321070, 332324, 415405, 486940, 642140, 830810, 1661620, 8058857, 16117714, 32235428, 40294285, 80588570, 161177140]

約数ペア:

[(1, 161177140), (2, 80588570), (4, 40294285), (5, 32235428), (10, 16117714), (20, 8058857), (97, 1661620), (194, 830810), (251, 642140), (331, 486940), (388, 415405), (485, 332324), (502, 321070), (662, 243470), (970, 166162), (1004, 160535), (1255, 128428), (1324, 121735), (1655, 97388), (1940, 83081), (2510, 64214), (3310, 48694), (5020, 32107), (6620, 24347)]