1555140440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{793439}}^1$

素因数の和:793464

約数の個数: 48

約数和(自身を含む): 4070347200

約数和(自身を除く): 2515206760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 793439, 1586878, 3173756, 3967195, 5554073, 6347512, 7934390, 11108146, 15868780, 22216292, 27770365, 31737560, 38878511, 44432584, 55540730, 77757022, 111081460, 155514044, 194392555, 222162920, 311028088, 388785110, 777570220, 1555140440]

約数ペア:

[(1, 1555140440), (2, 777570220), (4, 388785110), (5, 311028088), (7, 222162920), (8, 194392555), (10, 155514044), (14, 111081460), (20, 77757022), (28, 55540730), (35, 44432584), (40, 38878511), (49, 31737560), (56, 27770365), (70, 22216292), (98, 15868780), (140, 11108146), (196, 7934390), (245, 6347512), (280, 5554073), (392, 3967195), (490, 3173756), (980, 1586878), (1960, 793439)]