208763920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{84179}}^1$

素因数の和:84223

約数の個数: 40

約数和(自身を含む): 501039360

約数和(自身を除く): 292275440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 84179, 168358, 336716, 420895, 673432, 841790, 1346864, 1683580, 2609549, 3367160, 5219098, 6734320, 10438196, 13047745, 20876392, 26095490, 41752784, 52190980, 104381960, 208763920]

約数ペア:

[(1, 208763920), (2, 104381960), (4, 52190980), (5, 41752784), (8, 26095490), (10, 20876392), (16, 13047745), (20, 10438196), (31, 6734320), (40, 5219098), (62, 3367160), (80, 2609549), (124, 1683580), (155, 1346864), (248, 841790), (310, 673432), (496, 420895), (620, 336716), (1240, 168358), (2480, 84179)]