198396040

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{51133}}^1$

素因数の和:51241

約数の個数: 32

約数和(自身を含む): 451001880

約数和(自身を除く): 252605840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 51133, 102266, 204532, 255665, 409064, 511330, 1022660, 2045320, 4959901, 9919802, 19839604, 24799505, 39679208, 49599010, 99198020, 198396040]

約数ペア:

[(1, 198396040), (2, 99198020), (4, 49599010), (5, 39679208), (8, 24799505), (10, 19839604), (20, 9919802), (40, 4959901), (97, 2045320), (194, 1022660), (388, 511330), (485, 409064), (776, 255665), (970, 204532), (1940, 102266), (3880, 51133)]