22287580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{401}}^1$

素因数の和:814

約数の個数: 48

約数和(自身を含む): 53758656

約数和(自身を除く): 31471076

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 397, 401, 794, 802, 1588, 1604, 1985, 2005, 2779, 2807, 3970, 4010, 5558, 5614, 7940, 8020, 11116, 11228, 13895, 14035, 27790, 28070, 55580, 56140, 159197, 318394, 636788, 795985, 1114379, 1591970, 2228758, 3183940, 4457516, 5571895, 11143790, 22287580]

約数ペア:

[(1, 22287580), (2, 11143790), (4, 5571895), (5, 4457516), (7, 3183940), (10, 2228758), (14, 1591970), (20, 1114379), (28, 795985), (35, 636788), (70, 318394), (140, 159197), (397, 56140), (401, 55580), (794, 28070), (802, 27790), (1588, 14035), (1604, 13895), (1985, 11228), (2005, 11116), (2779, 8020), (2807, 7940), (3970, 5614), (4010, 5558)]