18821030

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{557}}^1$

素因数の和:704

約数の個数: 32

約数和(自身を含む): 35354880

約数和(自身を除く): 16533850

約数列:

[1, 2, 5, 10, 31, 62, 109, 155, 218, 310, 545, 557, 1090, 1114, 2785, 3379, 5570, 6758, 16895, 17267, 33790, 34534, 60713, 86335, 121426, 172670, 303565, 607130, 1882103, 3764206, 9410515, 18821030]

約数ペア:

[(1, 18821030), (2, 9410515), (5, 3764206), (10, 1882103), (31, 607130), (62, 303565), (109, 172670), (155, 121426), (218, 86335), (310, 60713), (545, 34534), (557, 33790), (1090, 17267), (1114, 16895), (2785, 6758), (3379, 5570)]