78892040

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{20333}}^1$

素因数の和:20441

約数の個数: 32

約数和(自身を含む): 179345880

約数和(自身を除く): 100453840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 20333, 40666, 81332, 101665, 162664, 203330, 406660, 813320, 1972301, 3944602, 7889204, 9861505, 15778408, 19723010, 39446020, 78892040]

約数ペア:

[(1, 78892040), (2, 39446020), (4, 19723010), (5, 15778408), (8, 9861505), (10, 7889204), (20, 3944602), (40, 1972301), (97, 813320), (194, 406660), (388, 203330), (485, 162664), (776, 101665), (970, 81332), (1940, 40666), (3880, 20333)]