189479440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{76403}}^1$

素因数の和:76447

約数の個数: 40

約数和(自身を含む): 454756608

約数和(自身を除く): 265277168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 76403, 152806, 305612, 382015, 611224, 764030, 1222448, 1528060, 2368493, 3056120, 4736986, 6112240, 9473972, 11842465, 18947944, 23684930, 37895888, 47369860, 94739720, 189479440]

約数ペア:

[(1, 189479440), (2, 94739720), (4, 47369860), (5, 37895888), (8, 23684930), (10, 18947944), (16, 11842465), (20, 9473972), (31, 6112240), (40, 4736986), (62, 3056120), (80, 2368493), (124, 1528060), (155, 1222448), (248, 764030), (310, 611224), (496, 382015), (620, 305612), (1240, 152806), (2480, 76403)]