199904680

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1\times {\mathrm{241}}^1$

素因数の和:574

約数の個数: 64

約数和(自身を含む): 458686800

約数和(自身を除く): 258782120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 233, 241, 356, 445, 466, 482, 712, 890, 932, 964, 1165, 1205, 1780, 1864, 1928, 2330, 2410, 3560, 4660, 4820, 9320, 9640, 20737, 21449, 41474, 42898, 56153, 82948, 85796, 103685, 107245, 112306, 165896, 171592, 207370, 214490, 224612, 280765, 414740, 428980, 449224, 561530, 829480, 857960, 1123060, 2246120, 4997617, 9995234, 19990468, 24988085, 39980936, 49976170, 99952340, 199904680]

約数ペア:

[(1, 199904680), (2, 99952340), (4, 49976170), (5, 39980936), (8, 24988085), (10, 19990468), (20, 9995234), (40, 4997617), (89, 2246120), (178, 1123060), (233, 857960), (241, 829480), (356, 561530), (445, 449224), (466, 428980), (482, 414740), (712, 280765), (890, 224612), (932, 214490), (964, 207370), (1165, 171592), (1205, 165896), (1780, 112306), (1864, 107245), (1928, 103685), (2330, 85796), (2410, 82948), (3560, 56153), (4660, 42898), (4820, 41474), (9320, 21449), (9640, 20737)]