25712990

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1\times {\mathrm{173}}^1$

素因数の和:436

約数の個数: 32

約数和(自身を含む): 47355840

約数和(自身を除く): 21642850

約数列:

[1, 2, 5, 10, 89, 167, 173, 178, 334, 346, 445, 835, 865, 890, 1670, 1730, 14863, 15397, 28891, 29726, 30794, 57782, 74315, 76985, 144455, 148630, 153970, 288910, 2571299, 5142598, 12856495, 25712990]

約数ペア:

[(1, 25712990), (2, 12856495), (5, 5142598), (10, 2571299), (89, 288910), (167, 153970), (173, 148630), (178, 144455), (334, 76985), (346, 74315), (445, 57782), (835, 30794), (865, 29726), (890, 28891), (1670, 15397), (1730, 14863)]