20424460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6343}}^1$

素因数の和:6382

約数の個数: 48

約数和(自身を含む): 51158016

約数和(自身を除く): 30733556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6343, 12686, 25372, 31715, 44401, 63430, 88802, 126860, 145889, 177604, 222005, 291778, 444010, 583556, 729445, 888020, 1021223, 1458890, 2042446, 2917780, 4084892, 5106115, 10212230, 20424460]

約数ペア:

[(1, 20424460), (2, 10212230), (4, 5106115), (5, 4084892), (7, 2917780), (10, 2042446), (14, 1458890), (20, 1021223), (23, 888020), (28, 729445), (35, 583556), (46, 444010), (70, 291778), (92, 222005), (115, 177604), (140, 145889), (161, 126860), (230, 88802), (322, 63430), (460, 44401), (644, 31715), (805, 25372), (1610, 12686), (3220, 6343)]