3866660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 9434880

約数和(自身を除く): 5568220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 389, 497, 710, 778, 994, 1420, 1556, 1945, 1988, 2485, 2723, 3890, 4970, 5446, 7780, 9940, 10892, 13615, 27230, 27619, 54460, 55238, 110476, 138095, 193333, 276190, 386666, 552380, 773332, 966665, 1933330, 3866660]

約数ペア:

[(1, 3866660), (2, 1933330), (4, 966665), (5, 773332), (7, 552380), (10, 386666), (14, 276190), (20, 193333), (28, 138095), (35, 110476), (70, 55238), (71, 54460), (140, 27619), (142, 27230), (284, 13615), (355, 10892), (389, 9940), (497, 7780), (710, 5446), (778, 4970), (994, 3890), (1420, 2723), (1556, 2485), (1945, 1988)]