18982240

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4091}}^1$

素因数の和:4135

約数の個数: 48

約数和(自身を含む): 46403280

約数和(自身を除く): 27421040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4091, 4640, 8182, 16364, 20455, 32728, 40910, 65456, 81820, 118639, 130912, 163640, 237278, 327280, 474556, 593195, 654560, 949112, 1186390, 1898224, 2372780, 3796448, 4745560, 9491120, 18982240]

約数ペア:

[(1, 18982240), (2, 9491120), (4, 4745560), (5, 3796448), (8, 2372780), (10, 1898224), (16, 1186390), (20, 949112), (29, 654560), (32, 593195), (40, 474556), (58, 327280), (80, 237278), (116, 163640), (145, 130912), (160, 118639), (232, 81820), (290, 65456), (464, 40910), (580, 32728), (928, 20455), (1160, 16364), (2320, 8182), (4091, 4640)]