20610820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{743}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 46247040

約数和(自身を除く): 25636220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 146, 190, 292, 365, 380, 730, 743, 1387, 1460, 1486, 2774, 2972, 3715, 5548, 6935, 7430, 13870, 14117, 14860, 27740, 28234, 54239, 56468, 70585, 108478, 141170, 216956, 271195, 282340, 542390, 1030541, 1084780, 2061082, 4122164, 5152705, 10305410, 20610820]

約数ペア:

[(1, 20610820), (2, 10305410), (4, 5152705), (5, 4122164), (10, 2061082), (19, 1084780), (20, 1030541), (38, 542390), (73, 282340), (76, 271195), (95, 216956), (146, 141170), (190, 108478), (292, 70585), (365, 56468), (380, 54239), (730, 28234), (743, 27740), (1387, 14860), (1460, 14117), (1486, 13870), (2774, 7430), (2972, 6935), (3715, 5548)]