20480950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{359}}^1$

素因数の和:541

約数の個数: 48

約数和(自身を含む): 43925760

約数和(自身を除く): 23444810

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 163, 175, 326, 350, 359, 718, 815, 1141, 1630, 1795, 2282, 2513, 3590, 4075, 5026, 5705, 8150, 8975, 11410, 12565, 17950, 25130, 28525, 57050, 58517, 62825, 117034, 125650, 292585, 409619, 585170, 819238, 1462925, 2048095, 2925850, 4096190, 10240475, 20480950]

約数ペア:

[(1, 20480950), (2, 10240475), (5, 4096190), (7, 2925850), (10, 2048095), (14, 1462925), (25, 819238), (35, 585170), (50, 409619), (70, 292585), (163, 125650), (175, 117034), (326, 62825), (350, 58517), (359, 57050), (718, 28525), (815, 25130), (1141, 17950), (1630, 12565), (1795, 11410), (2282, 8975), (2513, 8150), (3590, 5705), (4075, 5026)]