28427990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{953}}^1$

素因数の和:1136

約数の個数: 32

約数和(自身を含む): 54263520

約数和(自身を除く): 25835530

約数列:

[1, 2, 5, 10, 19, 38, 95, 157, 190, 314, 785, 953, 1570, 1906, 2983, 4765, 5966, 9530, 14915, 18107, 29830, 36214, 90535, 149621, 181070, 299242, 748105, 1496210, 2842799, 5685598, 14213995, 28427990]

約数ペア:

[(1, 28427990), (2, 14213995), (5, 5685598), (10, 2842799), (19, 1496210), (38, 748105), (95, 299242), (157, 181070), (190, 149621), (314, 90535), (785, 36214), (953, 29830), (1570, 18107), (1906, 14915), (2983, 9530), (4765, 5966)]