212103920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{378757}}^1$

素因数の和:378777

約数の個数: 40

約数和(自身を含む): 563591904

約数和(自身を除く): 351487984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 378757, 757514, 1515028, 1893785, 2651299, 3030056, 3787570, 5302598, 6060112, 7575140, 10605196, 13256495, 15150280, 21210392, 26512990, 30300560, 42420784, 53025980, 106051960, 212103920]

約数ペア:

[(1, 212103920), (2, 106051960), (4, 53025980), (5, 42420784), (7, 30300560), (8, 26512990), (10, 21210392), (14, 15150280), (16, 13256495), (20, 10605196), (28, 7575140), (35, 6060112), (40, 5302598), (56, 3787570), (70, 3030056), (80, 2651299), (112, 1893785), (140, 1515028), (280, 757514), (560, 378757)]