61485340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1129}}^1$

素因数の和:1534

約数の個数: 48

約数和(自身を含む): 148075200

約数和(自身を除く): 86589860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 389, 778, 1129, 1556, 1945, 2258, 2723, 3890, 4516, 5446, 5645, 7780, 7903, 10892, 11290, 13615, 15806, 22580, 27230, 31612, 39515, 54460, 79030, 158060, 439181, 878362, 1756724, 2195905, 3074267, 4391810, 6148534, 8783620, 12297068, 15371335, 30742670, 61485340]

約数ペア:

[(1, 61485340), (2, 30742670), (4, 15371335), (5, 12297068), (7, 8783620), (10, 6148534), (14, 4391810), (20, 3074267), (28, 2195905), (35, 1756724), (70, 878362), (140, 439181), (389, 158060), (778, 79030), (1129, 54460), (1556, 39515), (1945, 31612), (2258, 27230), (2723, 22580), (3890, 15806), (4516, 13615), (5446, 11290), (5645, 10892), (7780, 7903)]