123900560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{221251}}^1$

素因数の和:221271

約数の個数: 40

約数和(自身を含む): 329222976

約数和(自身を除く): 205322416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 221251, 442502, 885004, 1106255, 1548757, 1770008, 2212510, 3097514, 3540016, 4425020, 6195028, 7743785, 8850040, 12390056, 15487570, 17700080, 24780112, 30975140, 61950280, 123900560]

約数ペア:

[(1, 123900560), (2, 61950280), (4, 30975140), (5, 24780112), (7, 17700080), (8, 15487570), (10, 12390056), (14, 8850040), (16, 7743785), (20, 6195028), (28, 4425020), (35, 3540016), (40, 3097514), (56, 2212510), (70, 1770008), (80, 1548757), (112, 1106255), (140, 885004), (280, 442502), (560, 221251)]