69898760

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{3559}}^1$

素因数の和:4061

約数の個数: 32

約数和(自身を含む): 157636800

約数和(自身を除く): 87738040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3559, 3928, 4910, 7118, 9820, 14236, 17795, 19640, 28472, 35590, 71180, 142360, 1747469, 3494938, 6989876, 8737345, 13979752, 17474690, 34949380, 69898760]

約数ペア:

[(1, 69898760), (2, 34949380), (4, 17474690), (5, 13979752), (8, 8737345), (10, 6989876), (20, 3494938), (40, 1747469), (491, 142360), (982, 71180), (1964, 35590), (2455, 28472), (3559, 19640), (3928, 17795), (4910, 14236), (7118, 9820)]