40012840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{142903}}^1$

素因数の和:142921

約数の個数: 32

約数和(自身を含む): 102890880

約数和(自身を除く): 62878040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 142903, 285806, 571612, 714515, 1000321, 1143224, 1429030, 2000642, 2858060, 4001284, 5001605, 5716120, 8002568, 10003210, 20006420, 40012840]

約数ペア:

[(1, 40012840), (2, 20006420), (4, 10003210), (5, 8002568), (7, 5716120), (8, 5001605), (10, 4001284), (14, 2858060), (20, 2000642), (28, 1429030), (35, 1143224), (40, 1000321), (56, 714515), (70, 571612), (140, 285806), (280, 142903)]