20178875350

素因数分解:

$2^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{739}}^1\times {\mathrm{7481}}^1$

素因数の和:8305

約数の個数: 48

約数和(自身を含む): 38103431760

約数和(自身を除く): 17924556410

約数列:

[1, 2, 5, 10, 25, 50, 73, 146, 365, 730, 739, 1478, 1825, 3650, 3695, 7390, 7481, 14962, 18475, 36950, 37405, 53947, 74810, 107894, 187025, 269735, 374050, 539470, 546113, 1092226, 1348675, 2697350, 2730565, 5461130, 5528459, 11056918, 13652825, 27305650, 27642295, 55284590, 138211475, 276422950, 403577507, 807155014, 2017887535, 4035775070, 10089437675, 20178875350]

約数ペア:

[(1, 20178875350), (2, 10089437675), (5, 4035775070), (10, 2017887535), (25, 807155014), (50, 403577507), (73, 276422950), (146, 138211475), (365, 55284590), (730, 27642295), (739, 27305650), (1478, 13652825), (1825, 11056918), (3650, 5528459), (3695, 5461130), (7390, 2730565), (7481, 2697350), (14962, 1348675), (18475, 1092226), (36950, 546113), (37405, 539470), (53947, 374050), (74810, 269735), (107894, 187025)]