209780830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{673}}^1$

素因数の和:821

約数の個数: 64

約数和(自身を含む): 445292928

約数和(自身を除く): 235512098

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 73, 122, 146, 305, 365, 427, 511, 610, 673, 730, 854, 1022, 1346, 2135, 2555, 3365, 4270, 4453, 4711, 5110, 6730, 8906, 9422, 22265, 23555, 31171, 41053, 44530, 47110, 49129, 62342, 82106, 98258, 155855, 205265, 245645, 287371, 311710, 343903, 410530, 491290, 574742, 687806, 1436855, 1719515, 2873710, 2996869, 3439030, 5993738, 14984345, 20978083, 29968690, 41956166, 104890415, 209780830]

約数ペア:

[(1, 209780830), (2, 104890415), (5, 41956166), (7, 29968690), (10, 20978083), (14, 14984345), (35, 5993738), (61, 3439030), (70, 2996869), (73, 2873710), (122, 1719515), (146, 1436855), (305, 687806), (365, 574742), (427, 491290), (511, 410530), (610, 343903), (673, 311710), (730, 287371), (854, 245645), (1022, 205265), (1346, 155855), (2135, 98258), (2555, 82106), (3365, 62342), (4270, 49129), (4453, 47110), (4711, 44530), (5110, 41053), (6730, 31171), (8906, 23555), (9422, 22265)]