142457840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{254389}}^1$

素因数の和:254409

約数の個数: 40

約数和(自身を含む): 378532320

約数和(自身を除く): 236074480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 254389, 508778, 1017556, 1271945, 1780723, 2035112, 2543890, 3561446, 4070224, 5087780, 7122892, 8903615, 10175560, 14245784, 17807230, 20351120, 28491568, 35614460, 71228920, 142457840]

約数ペア:

[(1, 142457840), (2, 71228920), (4, 35614460), (5, 28491568), (7, 20351120), (8, 17807230), (10, 14245784), (14, 10175560), (16, 8903615), (20, 7122892), (28, 5087780), (35, 4070224), (40, 3561446), (56, 2543890), (70, 2035112), (80, 1780723), (112, 1271945), (140, 1017556), (280, 508778), (560, 254389)]