39143900

素因数分解:

$2^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{1987}}^1$

素因数の和:2198

約数の個数: 36

約数和(自身を含む): 85416408

約数和(自身を除く): 46272508

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 197, 394, 788, 985, 1970, 1987, 3940, 3974, 4925, 7948, 9850, 9935, 19700, 19870, 39740, 49675, 99350, 198700, 391439, 782878, 1565756, 1957195, 3914390, 7828780, 9785975, 19571950, 39143900]

約数ペア:

[(1, 39143900), (2, 19571950), (4, 9785975), (5, 7828780), (10, 3914390), (20, 1957195), (25, 1565756), (50, 782878), (100, 391439), (197, 198700), (394, 99350), (788, 49675), (985, 39740), (1970, 19870), (1987, 19700), (3940, 9935), (3974, 9850), (4925, 7948)]